3-Hydroxy-N,N-diethylaniline
Product Profile
Apply for Sample| Names | |
|---|---|
| Preferred IUPAC name | N,N-diethyl-3-hydroxyaniline |
| Other names | m-DEDEA 3-Diethylamino-phenol 3-Hydroxy-N,N-diethylaniline m-(Diethylamino)phenol 3-(Diethylamino)phenol |
| Pronunciation | /ˈθriː haɪˈdrɒksi ˌɛn ˌɛn daɪˈɛθɪləˌnaɪliːn/ |
| Identifiers | |
| CAS Number | 91-68-9 |
| 3D model (JSmol) | `3d:JSMOL-AQIDBAUGBwgJCgsMDQ4PEBESExQVFhcYGRobHB0eHyAiIyY=` |
| Beilstein Reference | 1222784 |
| ChEBI | CHEBI:76785 |
| ChEMBL | CHEMBL11237 |
| ChemSpider | 13866927 |
| DrugBank | DB08733 |
| ECHA InfoCard | 03b6ee5a-6c90-465d-8809-f3fcf6dfe676 |
| EC Number | 210-322-1 |
| Gmelin Reference | 7638 |
| KEGG | C18711 |
| MeSH | D018060 |
| PubChem CID | 16311 |
| RTECS number | DJ8750000 |
| UNII | WM5U8Y5PZ5 |
| UN number | 2811 |
| Properties | |
| Chemical formula | C10H15NO |
| Molar mass | 179.26 g/mol |
| Appearance | Light yellow to brown liquid |
| Odor | ammoniacal |
| Density | 1.045 g/cm3 |
| Solubility in water | slightly soluble |
| log P | 1.89 |
| Vapor pressure | 0.0219 mmHg at 25°C |
| Acidity (pKa) | 9.72 |
| Basicity (pKb) | 8.74 |
| Magnetic susceptibility (χ) | -64.43·10⁻⁶ cm³/mol |
| Refractive index (nD) | 1.597 |
| Viscosity | liquid |
| Dipole moment | 3.21 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 170.6 J·K⁻¹·mol⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | 21.6 kJ mol⁻¹ |
| Std enthalpy of combustion (ΔcH⦵298) | –3757.7 kJ/mol |
| Hazards | |
| Main hazards | Harmful if swallowed, causes skin and eye irritation, may cause respiratory irritation. |
| GHS labelling | GHS02, GHS07 |
| Pictograms | GHS07 |
| Signal word | Warning |
| Hazard statements | H302, H315, H319, H335 |
| Precautionary statements | Precautionary statements for 3-Hydroxy-N,N-diethylaniline: "P264, P280, P302+P352, P305+P351+P338, P337+P313 |
| NFPA 704 (fire diamond) | 1-2-0 Health:1 Fire:2 Reactivity:0 |
| Flash point | 106°C |
| Autoignition temperature | 605 °C |
| Lethal dose or concentration | LD50 oral rat 706 mg/kg |
| LD50 (median dose) | LD50 (median dose): 1130 mg/kg (Oral, Rat) |
| NIOSH | SN 1570000 |
| PEL (Permissible) | Not established |
| REL (Recommended) | 10 mg/m³ |
| IDLH (Immediate danger) | Unknown |
| Related compounds | |
| Related compounds | 2-Hydroxy-N,N-diethylaniline 4-Hydroxy-N,N-diethylaniline N,N-Diethylaniline 3-Hydroxy-N-ethylaniline 3-Hydroxy-N,N-dimethylaniline |
Chemical ID: CAS Formula HS Code Database
Product Identification
| Category | Information |
|---|---|
| Product Name & IUPAC Name | 3-Hydroxy-N,N-diethylaniline IUPAC: N,N-diethyl-3-aminophenol |
| Chemical Formula | C10H15NO |
| Synonyms & Trade Names | 3-Diethylamino-phenol; m-Hydroxy-N,N-diethylaniline |
| HS Code & Customs Classification |
Industrial experience shows that aromatic amine derivatives in this structural class are commonly classified under HS Code 2921.49 (Other aromatic monoamines and their derivatives). The final tariff line for customs documentation should follow national requirements and may vary with updates or local adaptation of WCO classification rules. |
Industrial Production Overview
Manufacturing 3-Hydroxy-N,N-diethylaniline in a chemical plant involves stepwise amination and alkylation, where process selection is heavily dependent on cost of raw materials, plant configuration, and downstream requirements. Precursor purity directly influences the impurity profile of the isolated product. Impurities mainly originate from incomplete alkylation, residual starting materials, and side reactions under process temperature. Purification typically combines liquid-liquid extraction and recrystallization. Each production facility optimizes the process to minimize costly reprocessing and ensure consistent color and odor of final output.
Grade and Application Influence
Physical appearance, residual base content, and color intensity can vary significantly between grades. Technical and intermediate grades prepared for further synthesis focus on yield efficiency and filtration properties rather than chromatic purity or trace contamination control. Applications as dye intermediates or process reagents may accept broader tolerance for minor byproducts than grades allocated to high-purity synthesis. Custom specifications for end users often require results from additional in-process checks or downstream refining.
Impact on Handling, Storage, and Downstream Processing
Handling of 3-Hydroxy-N,N-diethylaniline demands attention to the chemical's amine and phenol reactivity. Bulk material may show gradual color change due to oxidation, especially when exposed to air or light. Storage protocols depend on target grade, as certain grades demonstrate increased sensitivity requiring inerting or additional sealing during long-term holding. Residual water and volatile base levels affect blending and formulation properties, so packaging and transfer procedures focus on minimizing exposure and contamination during fill and discharge.
Quality Control in Manufacturing
Routine quality assessment includes monitoring for amine-phenol ratio, absence of unreacted raw materials, and physical appearance. For some customer segments, colorimetric or chromatography-based fingerprinting is part of the release criteria. Standards for trace impurities depend on the final application—functional colorants or synthesis intermediates have differing acceptance thresholds. The product passes internal criteria based on batch history, in-process spot checks, and customer specification compliance. Final release is defined per order and managed in conjunction with technical and QC teams.
3-Hydroxy-N,N-diethylaniline: Technical Properties, Manufacturing Process & Safety Guidelines
Physical & Chemical Properties
Physical State & Appearance
In industrial batches, 3-Hydroxy-N,N-diethylaniline usually presents as a crystalline solid or viscous liquid, depending on temperature and grade purity. Color ranges from pale yellow to brown, with deeper hues typically indicating trace-level oxidation or impurities. Its odor profile displays a mild aromatic amine note, most detectable in freshly synthesized material. Melting and boiling point values shift based on minor impurities and moisture load; process-grade material may exhibit a melting point depression or boiling range broadening. These traits often reflect synthetic route and work-up rigor.
Density & Volatility
Bulk density and specific gravity demonstrate batch-to-batch variation, most often influenced by residual solvent and water content. Density measurements inform correct storage and transfer protocol. Volatility can cause emissions in open processing steps, leading to increased handling restrictions for certain production lines.
Chemical Stability & Reactivity
In plant environments, 3-Hydroxy-N,N-diethylaniline reacts with common oxidants and acidic reagents. Solutions may darken on prolonged air exposure, especially under elevated humidity or light, due to slow oxidative degradation. Storage under inert or dry conditions extends shelf life and minimizes color change. Process engineers track reactivity trends to avoid batch quality drift.
Solubility & Solution Preparation
Solubility varies with grade and intended application. Lower-grade material may show increased insoluble fractions due to oligomeric byproducts or unreacted raw materials. For analytical controls, dissolution in polar organic solvents is preferred, whereas industrial formulations sometimes require cosolvents or additives for full solution clarity. Technician training should emphasize gradual addition and agitation to prevent undissolved residues in scale-up.
Technical Specifications & Quality Parameters
Specification Table by Grade
| Property | Industrial Grade | High Purity Grade |
|---|---|---|
| Appearance | Pale yellow to brown solid/liquid | Pale yellow solid |
| Assay | Grade-dependent | Defined by customer specification |
| Water Content | Process-controlled | Tighter limit for electronics/pharma use |
| Impurities | Typical of route and campaign sequence | Reduced by additional purification steps |
Specification values reflect requirements of end use—dye manufacture tolerates wider impurity range than electronics or pharmaceutical synthesis. Final release depends on batch analytical results and user specification.
Impurity Profile & Limits
Main impurities derive from incomplete alkylation, oxidation during work-up, or secondary amine byproducts. High-purity applications push for lower nitrosamine and heavy metal content, monitored by in-house GC, HPLC, and MS screens. Impurities show process-dependence; stringent tracking across campaign runs is critical.
Test Methods & Standards
In-plant laboratories rely on titrimetric, spectroscopic, and chromatographic techniques selected for matrix robustness and detection threshold. Standards align with customer requirements; food-contact, pharma, or electronics markets demand validated trace impurity quantification.
Preparation Methods & Manufacturing Process
Raw Materials & Sourcing
Manufacturing units select aniline derivatives and ethylating agents based on regional chemical feedstock availability, purity profile, and impurity carryover. Sourcing strategy balances cost with downstream purification needs.
Synthesis Route & Reaction Mechanism
Most factories implement ethylation of 3-aminophenol under alkaline conditions, with process adaptation for target impurity control. Process optimization considers catalyst selection, order of reactant addition, and phase control. Route selection affects cost structure and environmental compliance.
Process Control & Purification
Process engineers focus on temperature, agitation, and pH adjustment at scale. Poor agitation or uneven substrate addition can spike side-products. In-line monitoring tracks reaction progress to minimize over-alkylation. Purification involves crystallization, washing, and if necessary, column or distillation. Refining steps tie directly to required product grade.
Quality Control & Batch Release
Consistent batch quality demands strict control of charge ratios, hold times, and purification efficiency. Each batch receives full analytical characterization against defined grade standards. QA/QC protocols reject off-spec material to prevent cross-contamination of high-priority production lines.
Chemical Reactions & Modification Potential
Typical Reactions
The core structure permits further alkylation, acylation, and electrophilic substitution. 3-Hydroxy-N,N-diethylaniline can serve as an intermediate in dye, pigment, and specialty chemical synthesis when coupled under controlled conditions. Substitution pattern and amine alkylation degree influence downstream utility.
Reaction Conditions
Optimal reactivity occurs under mild heating or with phase-transfer catalytic assistance. Solvent choice and stoichiometry tuning prove essential for scalable modifications. Feedstock purity and reaction monitoring control byproduct profile and downstream process reliability.
Derivatives & Downstream Products
Major manufacturers utilize this molecule in further condensation, coupling, or oxidation steps for dye, developer, and antioxidant applications. Application area dictates required modification, with pigment and specialty chemical synthesis calling for narrowly defined impurity windows.
Storage & Shelf Life
Storage Conditions
Recommended practice involves storing under dry, inert gas in sealed metal or compatible polymer drums. Exposure to air, moisture, or light promotes color and assay drift. Cold storage or minimal headspace environments extend usable shelf life for high-purity lots.
Container Compatibility
Material selection for storage and shipment considers permeation, reactivity, and leachables. Stainless steel and select HDPE drums remain standard. Interaction with oxygen or acidic surfaces risks product degradation.
Shelf Life & Degradation Signs
Shelf life depends on packaging integrity and exposure minimization. Degradation signs include color shift, odor development, and appearance of suspended solids. Early detection involves routine visual and assay checks during storage.
Safety & Toxicity Profile
GHS Classification
Hazard pictograms and classifications reflect acute toxicity, skin and eye hazard, and environmental risk potential. Regulatory review relies on up-to-date toxicological and ecological data.
Hazard & Precautionary Statements
Standard practice includes minimizing inhalation, skin, or eye contact during handling. Personnel training covers first aid and decontamination procedures, tailored to site scale and chemical usage profile.
Toxicity Data, Exposure Limits & Handling
Toxicological values depend on product grade and impurity burden. Higher alkylated aniline analogs may require lower occupational exposure targets, often aligned with regional regulatory frameworks. Handling protocols include ventilation, use of protective equipment, and engineering controls appropriate to scale and exposure risk. Industrial hygiene monitoring verifies control effectiveness in production and packaging areas.
Supply Capacity & Commercial Terms
Production Capacity & Availability
In continuous operation, plant utilization for 3-Hydroxy-N,N-diethylaniline tracks closely with feedstock reliability and downstream order commitments. Production cycles pivot on equipment set-up for multi-step amination and subsequent purification. Downtime generally results from feedstock availability or batch-specific cleaning validation, not lack of demand. Available supply for off-schedule spot purchases requires direct inventory assessment, as firm allocations prioritize existing offtake agreements. Typical batch sizes and annual tonnage targets reflect accumulated experience with process stability and raw material procurement, not speculative stockpiling.
Lead Time & Minimum Order Quantity (MOQ)
Lead time varies according to production queue, confirmation of raw material lots, and logistic scheduling, not just nominal throughput rates. Standard lead time can stretch if customer requires grade-specific release testing, independent batch reserve, or non-routine packaging. MOQ is primarily influenced by isolation efficiency and loss fraction at each stage. Lower MOQs for laboratory or semi-bulk grades incur higher relative costs due to increased sampling and repackaging efforts. Higher-volume commitments optimize reactor loading and reduce per-unit overhead.
Packaging Options
Most customers request sealed, inert-lined drums or HDPE containers, suitable for typical storage durations and minimizing contact with air and light. Custom packaging, such as intermediate bulk containers or export-grade overpacks, sees deployment depending on final destination requirements and transport mode (sea, air, or overland). For higher grades, trace-level cross-contamination mitigations dictate single-use liners or segregated fill zones at the packaging station.
Shipping & Payment Terms
Transport selection reflects hazard classification and regional regulatory labeling. Temperature excursions remain an assessed risk in bulk shipments, particularly cross-continental. The main payment terms follow irrevocable letter of credit or TT advance for new clients, with extended credit arrangements considered only under evidence of prior satisfactory settlement. Incoterms and documentation can be customized case-by-case, but final dispatch awaits full compliance with agreed terms.
Pricing Structure & Influencing Factors
Raw Material Cost Composition & Fluctuation Causes
Raw material pricing for 3-Hydroxy-N,N-diethylaniline hinges on the cost of aniline derivatives, caustic agents, and handled solvents. These upstream inputs represent most of the production cost structure. Market volatility often traces to fluctuations in crude oil and benzene-derived feedstocks, which ripple through all aromatic amines. Regulatory interventions in key precursor markets may prompt abrupt input price changes, especially for restricted-use aniline derivatives in Asia or EHS-triggered plant closures. Energy pricing, labor costs, and effluent management also modulate overall cost; these factors rarely move in isolation but can combine to form sharp notches in quarterly procurement trends.
Product Price Differentiation: Grade, Purity, and Packaging Certification
Price gaps between product lots usually stem from the absolute and trace impurity profiles achieved during purification plus documentary evidence for compliance and packaging. Purity specifications for electronic or pharmaceutical precursor grades require additional mother liquor washing and multi-stage analytic verification, elevating consumable, labor, and release costs. Certification for specific downstream use, such as GMP-compliance, triggers both direct analytical overhead and more frequent QA batch release holds. Standard bulk industrial packaging offers a cost base, but custom-labeled, tamper-proof, or export-certified packaging generates tiered pricing due to cleanroom handling and auditing.
Global Market Analysis & Price Trends
Global Supply & Demand Overview
3-Hydroxy-N,N-diethylaniline demand clusters in dyestuffs, solvent intermediates, and niche specialty chemicals. Seasonal demand surges materialize during certain downstream campaign launches or new formulation releases. Global supply skews toward Asia-Pacific, with China and India as major producers, benefiting from ready feedstock and cost-effective labor. Western capacity remains more constrained, balancing localized regulatory compliance with higher operating costs.
Key Economies Analysis
| Economy | Current Market Characteristic |
|---|---|
| United States | Limited local production; import-reliant; strict environmental compliance; high logistics costs due to hazardous designation. |
| European Union | Tighter purity and certification norms; robust demand for electronics and biotech intermediates; regulatory compliance is expensive and production sits under REACH oversight. |
| Japan | Specialty grade consumption dominates; low tolerance for contamination; long-term supplier vetting common; local production capabilities restricted by scale. |
| India | Bulk-grade output supplies textiles and local intermediates, cost-sensitive on raw material imports; variable energy and regulatory costs. |
| China | Global export hub; wide grade variation; price volatility tied to local plant environmental policy tightening and festival-related raw material curtailments. |
2026 Price Trend Forecast
Looking toward 2026, price trends depend on regulatory development, raw material feedstock supply, and downstream demand from electronics and fine chemical segments. Anticipated tightening of environmental and safety controls in China and India is expected to lift production costs, particularly for high-purity and export grades. Potential capacity expansions in Southeast Asia warrant monitoring, but local technical barrier implementation may delay effective output. Energy price shocks and geopolitical instability remain wildcard factors for input cost baselines.
Data Sources & Methodology
Price and capacity trend statements derive from published trade data, public filings from listed chemical firms, and import-export tariff sources, augmented by direct supplier market experience. Forward-looking statements rely on process engineering analysis, historical procurement trends, and direct feedback from multi-regional customer bases.
Industry News & Regulatory Updates
Recent Market Developments
Ongoing plant audits in major Chinese and Indian production regions have led to restricted output for selected dye and pharmaceutical intermediates, impacting global scheduling for 3-Hydroxy-N,N-diethylaniline. Strict adherence to wastewater and effluent standards has prompted temporary shutdowns and increased audit frequencies.
Regulatory Compliance Updates
Current compliance expectations focus on product traceability, batch release documentation, and adherence to REACH (EU), TSCA (US), and self-certification under India’s Chemical Rules. Clients seek documented evidence of impurity reporting, packaging integrity, and adherence to UN transport codes. Production plants have responded by tightening in-process monitoring with real-time analytics and extending QA release cycles for lots shipped to US and EU.
Supplier Response & Mitigation
The manufacturing team has adopted multi-source procurement for critical inputs and established backup batch scheduling to address feedstock disruptions. Dedicated, segregated packaging lines support special-grade purity and prevent cross-batch contamination, particularly for shipment to regulated markets. Downstream users are encouraged to engage early on lot release testing requirements to minimize shipment delays.
Application Fields & Grade Selection Guide for 3-Hydroxy-N,N-diethylaniline
Industry Applications
In industrial manufacturing, 3-Hydroxy-N,N-diethylaniline enters value chains that demand precise oxidative, reductive, or coupling chemistry. The primary sectors utilizing this intermediate include:
- Dye and pigment synthesis: Applied in azo coupling and as a coupling agent in oxidative coloration processes. Final color shade, lightfastness, and resistance largely depend on both the amine’s purity and trace metal content.
- Pharmaceutical intermediates: Utilized for active pharmaceutical ingredient (API) building blocks and as reagents in multi-step synthesis. Strict requirements apply for both inorganic and organic impurities, frequently requiring tighter controls than technical grades.
- Analytical reagents: Used in colorimetry and chemical analysis where background interference from minor impurities must be minimal.
- Specialty chemicals manufacturing: Such as fine chemical, cross-linker, or resin modification processes. Organic byproduct profile and batch reproducibility are priorities.
Grade-to-Application Mapping
| Grade | Application Focus | Key Quality Criteria |
|---|---|---|
| Technical Grade | Dye intermediates, pigment manufacture | Accepts moderate organic impurity, higher allowable trace metals, supports cost-sensitive scale |
| Purified Grade | High-performance pigments, resins, polymer modification | Reduced total organic residue, lower colored impurities, tighter bulk batch homogeneity |
| Analytical/Reagent Grade | Laboratory chemical analysis, reference materials | Controls on chromatic purity, minimized interfering substances and byproducts |
| Pharmaceutical/Custom Grade | API synthesis, GMP-impacted steps | M-PQ (metal and process quality), process traceability, compliance with customer-specific monographs |
Key Parameters by Application
- Major impurity profile shifts by grade—dye applications tolerate traces of regioisomers and byproduct anilines, while pharma mandates defined absence or quantification.
- Moisture and water content impact shelf stability in pigment formation and must be defined during grade selection.
- Color (APHA or Gardner scale) influences outcomes in analytical and specialty chemical use, flagged at release if off-standard.
- Trace metal residue relates to raw material selection and purification step design—only custom or pharma grades enforce specification-level controls routinely.
How to Select the Right Grade
Step 1: Define Application
Clarify the end-use, expected chemical transformation, and downstream process sensitivities. Early definition avoids costly reformulations and mismatched deliveries.
Step 2: Identify Regulatory Requirements
Assess if production falls under local or international regulatory oversight (REACH, FDA, GMP, etc.). Pharmaceutical-grade demand initiates traceability and process control at every batch, while dye intermediates remain governed mainly by industry quality agreements.
Step 3: Evaluate Purity Needs
Target impurity specifications set the purification route and quality checkpoints in manufacturing. Laboratory and custom-application customers require grade-specific COAs with full impurity mapping on each shipment. Dye and technical users typically accept batch certificates reflecting plant average or process control data unless a particular issue is flagged.
Step 4: Consider Volume & Budget
Technical grade supports large lots and cost-sensitive production, while reagent and pharma grades command higher cost due to tighter process control, increased in-process testing, and additional purification steps. Orders scaling from laboratory gram windows to ton-scale pigment manufacture require dialogue with production to align lot size, packing, and QC intensity.
Step 5: Request Sample for Validation
To verify performance, especially in specialty or regulated end-uses, a sample batch provides the final safeguard. This allows laboratory-scale validation against target specifications and highlights unforeseen compatibility or contamination risks before scale-up purchase. Approval by customer QC releases manufacturing for regular supply.
Production and Quality Considerations
Raw Material Selection
Sourcing logic focuses on minimizing upstream trace contaminants. Selection impacts downstream purification challenge and final impurity profile. Technical grades benefit from flexible source options. Pharma and reagent production restrict to suppliers with repeatable provenance and batch documentation.
Process Route Selection
Synthetic route defines the dominant impurity set—production by alkylation delivers a different minor impurity spectrum versus reductive methods. Reagent or pharmaceutical routes may require additional isolation or crystallization steps not used for technical output.
Key Control Points
Critical stages include amine precursor loading, temperature control during coupling/alkylation, and separation efficiency at extraction steps. Deviations flagged by in-process controls (TLC, GC, LC) result in hold or rework, particularly on high-purity lots.
Impurity Generation and Management
Side-products can arise from over-alkylation, oxidative degradation, or solvent impurities. Batch histories and deviation reports support quality trending for long-term supplies. Pharma and reagent controls demand impurity tracking with method validation.
Purification Strategy
Technical output often relies on bulk crystallization and wash steps, balanced against throughput. High-grade output adopts additional filtration, repeated crystallization, or chromatography as necessary to achieve target impurity limits. Process yield and cost influence feasibility at scale.
Batch Consistency
Production batch records capture all variable parameters. For dye and technical orders, homogeneity is monitored via composite sampling and periodic checks on functional end-use. For pharma and analytical trade, full lot traceability to raw materials, equipment trains, and operator logs is required for every release.
Release Criteria
Each customer segment triggers its own signoff process. Technical shipments undergo routine QC checks for purity, water content, and residual color. Pharma and analytical consignments demand grade-level full certification, reference standards, and detailed impurity mapping as part of the delivery. Adjustments or customer audits follow in cases of deviation or special order specification.
Trust & Compliance: Quality Certifications & Procurement Support for 3-Hydroxy-N,N-diethylaniline
Quality Compliance & Certifications
Quality Management Certifications
Manufacturing 3-Hydroxy-N,N-diethylaniline at scale involves multi-stage process controls, especially at critical sampling and in-process refining stages. Internal quality systems draw on ISO standards relevant to chemical manufacturing, ensuring documentation and traceability from raw material assessment to lot-specific final testing. Each production run undergoes cross-functional verification from quality, technical, and production management teams. Operational alignment with such frameworks addresses both system audits and batch-specific nonconformity risk.
Product-Specific Certifications
Downstream customers in dye intermediates, electronics, and research sectors often request conformity to industry and regulatory benchmarks. Certificate of Analysis (CoA) is customized for lot-specific release points, including key attributes—such as assay, color index, and moisture profile—as dictated by contract or customer application. Purity levels, impurity fingerprints, and trace residuals can be specified in accordance with current customer project requirements, not fixed universal numbers.
If end-user sectors require compliance documentation beyond core CoA—such as Reach, RoHS, or non-animal origin statements—technical and regulatory teams prepare supporting reports. Comprehensive product dossiers summarize analytical results, synthetic route declarations, and stability references, all referenced back to batch records and in-house testing protocols.
Documentation & Reports
Documentation practices extend to full traceability on ingredient sourcing, with origins of key reagents and solvents logged for each batch. Specialist needs—such as impurity mapping, spectral data, or toxicological summaries—are addressed through custom report generation, reflecting the iterative detail required for process validation and scale-up projects. The technical documentation is continuously aligned with third-party audit standards and feedback from formal customer change requests.
Purchase Cooperation Instructions
Stable Production Capacity Supply and Flexible Business Cooperation Plan
3-Hydroxy-N,N-diethylaniline production relies on multi-line integration at the plant, balancing backward integration of precursor inputs with downstream customer demand cycles. Production slots are mapped to planned orders and forecast signals, allowing the company to sustain repeatable batch-to-batch result within the contract window. Minimum lot size and frequency of delivery are set in consultation with both the supply and customer logistics teams. Adjustable batch size and delivery intervals can be supported for both project-based and ongoing application customers.
Core Production Capacity and Stable Supply Capability
Main reactor and auxiliary process trains maintain core capacity, with volume flexibility guided by historical demand and contract commitments. Fluctuations in utility supply, raw material variation, and downstream processing constraints are constantly reviewed by the process engineering department. Advanced notice for off-cycle orders and lead times is openly communicated, minimizing supply interruptions. Reliability of supply rests on proactive maintenance of equipment, multi-option inventory of critical precursors, and product-specific in-process controls to support year-round consistency.
Sample Application Process
Application for sampling follows a controlled request protocol. The technical department evaluates sample quantity and specific testing needs, aligning requirements with available laboratory or pilot-scale material. Documentation provided with samples includes interim CoA and storage/handling recommendations, specific to the grade, origin, and intended test purpose. Fast-tracked logistics are coordinated with customer project deadlines, and feedback from sampling is systematically incorporated into commercial supply rollouts.
Detailed Explanation of Flexible Cooperation Mode
Cooperation models for 3-Hydroxy-N,N-diethylaniline span fixed-term supply contracts, on-demand shipment frameworks, and collaborative development partnerships. Customers can engage in adaptable purchase quantities, consolidated shipment schedules, or extended order commitments—tailored to project lifecycle or sporadic requirement. Joint definition of technical specifications, documentation package, and production window can be set through technical and commercial discussions, prioritizing both agility and compliance. Specialized projects, such as custom impurity controls or alternate packaging solutions, proceed through documented change management procedures led by production, quality, and customer teams.
Market Forecast & Technical Support System for 3-Hydroxy-N,N-diethylaniline
Research & Development Trends
Current R&D Hotspots
In industrial settings, research on 3-Hydroxy-N,N-diethylaniline centers on process intensification for higher purity outputs and consistent batch reproducibility. The focus often stays fixed on yields, by-product suppression, and minimizing reaction time, with material costs pushing ongoing innovation in raw material sourcing and waste reduction. For applications in dye intermediates and specialty chemicals, color index, purity profile, solubility, and trace impurity control require tailored upstream controls.
Emerging Applications
Recent findings from customer projects indicate a shift in development interest toward organic electronics and photonic materials, where electronic donor-acceptor properties and oxidative behavior become essential performance drivers. Formulators in these sectors apply strict controls on water content and transition metal impurities, as such contaminants may impact downstream polymerization or functional performance. Traditional textile and ink sectors continue to adopt stricter odor, hue, and thermal stability benchmarks.
Technical Challenges & Breakthroughs
Production at scale often faces bottlenecks from catalyst recovery, heat removal during amination, and the formation of oligomeric impurities. Practical solutions to these hurdles include implementation of closed-loop solvent systems, continuous flow reactors for more predictable conversion, and advanced crystallization control to sharpen final quality cut points. Breakthroughs in in-line spectroscopic monitoring have increased first-pass yield and enabled real-time correction of minor process drift before final QA.
Future Outlook
Market Forecast (3-5 Years)
Demand trajectory for 3-Hydroxy-N,N-diethylaniline remains tied to growth in advanced dyestuffs, digital printing inks, and organic light-emitting device industries. Customer inquiries suggest expanding requirements in electronic and photostable applications, especially in regions emphasizing vertical integration of intermediates. Procurement strategies shift according to supply chain reliability, driving interest in dual-source or flexible synthesis routes. Pricing influence correlates with feedstock volatility and disposal cost management.
Technological Evolution
Manufacturing plants are upgrading from batch to continuous flow operations to better control reaction exotherms and reduce turnaround time. Electrochemical and enzymatic process explorations are ongoing but not mature for large volumes. For higher end-use consistency, there is a move from traditional distillation toward hybrid purification, including adsorption and membrane techniques. These shifts are intended to isolate specific isomers or reduce difficult-to-remove odorous traces, especially in applications with regulatory or customer-driven low impurity tolerance.
Sustainability & Green Chemistry
Regulatory pressure and customer sustainability targets urge a reduction in chlorinated solvents and end-of-pipe waste treatment. Key priorities in R&D include solvent recycling, energy integration into utility networks, and lifecycle assessment of both major and trace emissions. Some product grades now request documentation on the recycled/reused input fraction, or require process performance in absence of heavy metals as oxidants or catalysts.
Technical Support & After-Sales Service
Technical Consultation
Our technical team provides in-depth consultation to customers transitioning between process grades, application chemistries, or end-use requirements. Recommendations always account for grade dependency, especially around targeted purity, residual solvent content, and impurity fingerprinting. We share production data and relevant analytical support where process troubleshooting or scale-up support is required, coordinating feedback between QA and R&D when a customer’s application draws on borderline product specification points.
Application Optimization Support
Application engineering teams analyze real production conditions to calibrate downstream compatibility—such as solubility, reactivity, bulk handling, and storage profile—based on customer batch environment and post-receipt handling. For users in colorant or electronic materials, specific packaging, inerting, or moisture control protocols are defined jointly by our application specialists with customer-side technical users. Plant visits and remote diagnostics remain available for process optimization or troubleshooting as permitted by confidentiality agreements.
After-Sales Commitment
We guarantee batch release standards reflecting both internal QA controls and any enhanced requirements agreed in negotiation or repeated customer audits. For recurring orders, release criteria may be adapted per ongoing customer feedback or regulatory updates. Our committed response window covers all stages from receipt, processing, to end-use validation disputes. Replacement, troubleshooting, or detailed COA interpretation is handled directly by technical support, not routed through third-party resellers. All feedback loops contribute to our continuous improvement system, which feeds directly into process and quality upgrades.
Direct Production and Supply of 3-Hydroxy-N,N-diethylaniline for Industrial Clients
Our Manufacturing Process
3-Hydroxy-N,N-diethylaniline production begins with careful selection and verification of starting materials. Our facility operates batch reactors designed for accurate temperature and mixing control to ensure consistent molecular structure and chemical purity. Each lot passes through multi-stage filtration and distillation processes to minimize byproducts. Production runs are scheduled for full batch traceability, so every shipment corresponds to a documented process path. Technicians maintain process logs, monitoring reaction time, pH, and critical temperature points for every batch.
Key Industrial Uses
Industrial buyers often incorporate 3-Hydroxy-N,N-diethylaniline in dye synthesis, where it acts as a key building block for vivid and stable colorants in textiles and polymers. It also serves as an intermediate in antioxidant production, especially for rubber processing and lubricant additives. Some manufacturers rely on this compound in custom chemical programs for agrochemical intermediates and specialty coatings. Its properties support high-value transformations in these downstream applications.
Quality Control and Consistency
Quality assurance relies on in-line and batch-based analytical methods. Our laboratory conducts GC and HPLC impurity profiling for each production lot. Water content and melting range fall within narrow, independently verified bands. We sample every packaged unit to ensure alignment with customer specifications for purity and appearance. Deviations outside set limits trigger root cause investigations and corrective action, preventing mixed-grade shipments. Analytical certificates with supporting chromatograms accompany each delivery.
Packaging and Supply Capability
We fill and seal all orders in dedicated packaging lines equipped for tamper evidence and contamination prevention. Drum, IBC, and bulk container sizes accommodate various volume needs, with closed-system filling ensuring product integrity during handling. On-site warehouses maintain temperature and humidity within set points, supporting seasonal and just-in-time logistics programs. Bulk transportation agreements enable reliable and scaled supply to regional and global buyers.
Technical Support for Industrial Users
Technical teams provide direct assistance for process integration and troubleshooting. We keep formulation chemists and plant engineers informed on critical properties and storage guidelines. Customers facing new application challenges receive documented evaluation data and formulation recommendations from experienced technical staff. Routine support includes product revalidation, impurity trend tracking, and analytical method sharing, helping maintain operational stability and compliance in demanding industrial settings.
Business Value for Commercial Buyers
Large-scale users count on our controlled production for predictable lead times and steady pipeline flow. Procurement teams find value in our long-term supply agreements focused on specification adherence and logistics reliability. Distributors draw on direct-from-factory sourcing with support for demand spikes and strategic stockholding. Manufacturers integrating 3-Hydroxy-N,N-diethylaniline into tiered supply chains gain from the documented traceability and quality transparency built into every shipment, supporting cost control and reducing risk.
Conclusion
Operating as a direct chemical producer, we maintain oversight from raw material intake to final dispatch. Our practices support demanding industrial production environments that require more than a commodity—they require guaranteed consistency, technical support, and rigorous quality assurance for each delivery of 3-Hydroxy-N,N-diethylaniline.
Industrial FAQ
What are the key physical and chemical properties of 3-Hydroxy-N,N-diethylaniline relevant for formulation development?
Direct Insight From the Manufacturer’s Plant Floor
Every batch of 3-Hydroxy-N,N-diethylaniline rolling off our production line carries properties that steer its performance in countless applications. Over decades of synthesis, handling, and scale-up, we've seen its physical and chemical traits impact downstream processing and product integrity to a degree that simply can't be ignored during formulation development.
Solubility and Handling
Solubility figures prominently in how formulators approach this material. In practical processing terms, its moderate solubility in common organic solvents such as ethanol and acetone enables straightforward solution preparation during both lab and industrial scale-up. Consistency in dissolution kinetics supports reproducibility from pilot to full-scale production. Our labs monitor every lot for outliers in solubility profile, since oddball batches can disrupt throughput and uniformity in complex blends.
Our customers have raised concerns about water solubility in certain end-use cases. The presence of the hydroxy group adds some hydrophilicity, but full miscibility in water isn’t realistic due to the ethyl substituents on the amino nitrogen, which impart pronounced organic character. We encourage pre-formulation studies to gauge compatibility with aqueous systems, and our technical team can share empirical observations from past integration projects.
Thermal Stability and Storage Profile
During storage and blending, 3-Hydroxy-N,N-diethylaniline exhibits sound thermal stability under typical warehouse conditions. We follow strict temperature controls on-site, as extended exposure to higher temperatures tends to promote slow discoloration or degradation, especially in environments prone to moisture ingress or elevated humidity. Our facilities package this product in moisture-proof, UV-shielded drums to preserve integrity through the entire supply chain.
Chemical Reactivity
On the chemical front, the hydroxy group at the 3-position, adjacent to the amino group, drives several synthetic transformations. In our own product development, we exploit this dual functionality to produce advanced intermediates for dyes and stabilized organic materials. This dual active site structure can introduce challenges: unwanted side reactions or instability in highly oxidative environments. We help clients optimize process conditions to minimize these risks without sacrificing efficiency.
The N,N-diethyl substitution on the aniline ring improves resistance to strong acids and bases relative to unsubstituted anilines, imparting added process flexibility. Many industrial customers report higher compatibility with aggressive curing agents and resins for coatings and polymer-modified systems thanks to this robustness.
Color, Purity, and Impact on Final Product
Formulators usually require a high level of color purity to ensure the target product’s aesthetic and functional performance. Our in-line spectrophotometry systems screen for trace coloration or impurity development during synthesis. Purity checks, verified through GC-MS and HPLC, reveal that minor batch-to-batch changes can affect outcomes in sensitive pigment and specialty chemical blends. Tight control of residual solvent levels and by-products during final drying steps is critical for clients demanding high-purity grades.
Material Handling, Safety, and Documentation
Handling on the shop floor calls for personal protective equipment and targeted extraction, given the compound’s vapor pressure and potential to cause irritation at higher airborne concentrations. Our MSDS and process control protocols reflect a detailed understanding of hazards from years of practical plant experience. Process engineers and R&D teams can request granular data packages on thermal decomposition, storage compatibility, or regulatory compliance specifics tied to real-world operating conditions.
Continuous Process Optimization
We constantly re-examine our production and post-production steps for 3-Hydroxy-N,N-diethylaniline, actively refining them to achieve better batch uniformity and functional purity. Direct feedback from users in end-use sectors helps us tweak reaction parameters, drying and purification methods, and QA plans to support the evolving demands of formulation development.
Our technical team remains on call for further discussion and practical insights based on full-scale manufacturing realities.
Is 3-Hydroxy-N,N-diethylaniline available in bulk quantities and what are the standard packaging sizes offered?
Consistent Supply Supported by In-House Production
Long-term clients from diverse sectors repeatedly ask about the availability of 3-Hydroxy-N,N-diethylaniline in large volumes. As the direct producer, we understand that process interruptions and unpredictable downstream schedules cause real problems, both for specialty formulation and high-volume applications. Over the last decade, our manufacturing line has delivered consistently on tonnage-scale contracts, with annual capacity that allows us to respond flexibly to complex demand cycles. Production runs are scheduled with pipeline customers in mind, not on an ad-hoc or batch-by-batch basis. Continuous monitoring and regular investment in equipment upgrades mean we keep our output aligned with the evolving requirements of cosmetics, agrochemical intermediates, and analytical chemistry customers.
Standard Packing: Built for Transport and Storage Efficiency
Clients working with multi-ton orders of 3-Hydroxy-N,N-diethylaniline require packaging that safeguards product integrity during lengthy transport and storage, while supporting lean handling on the floor. In our plant, two main configurations remain standard: 25-kilogram fiber drums with inner liners, and 200-kilogram HDPE drums. Both formats address safety, moisture protection, and minimized risk of contamination. Palletization practices allow for streamlined warehouse management.
Every step, from drum selection to sealing protocols, reflects a manufacturer's focus on minimizing customer disruptions from environmental exposure or cross-contamination—especially since even trace impurities can have downstream effects in dye synthesis or analytical labs. Our technical and logistics teams inspect every shipment against a strict protocol tailored to bulk buyers, not just small-scale laboratory use.
Quality Assurance Rooted in Direct Process Control
Direct responsibility for synthesis and finishing ensures traceability from raw source up through drumming and dispatch. Certificates of Analysis and supporting batch documentation accompany all bulk orders, and representative samples from every lot receive analytical verification in-house prior to release. Customers who require regular re-qualification or specific testing methods can coordinate directly with our technical support group; this communication line remains open throughout the purchasing cycle. We respond to requests for tighter impurity profiles or additional analytical data with process modifications and extra in-process controls—not by outsourcing or repackaging pre-made stock.
Customization Beyond Standard Packs
Some project timelines or plant layouts call for larger or atypical pack sizes. We provide customized packaging, including 500-kilogram intermediate bulk containers (IBCs), for site-to-site transfer or synchronized just-in-time delivery to continuous processing systems. Bulk packaging requests follow risk assessments on chemical stability, safety in transit, and legal transport guidelines. As a direct manufacturer, we integrate these customizations into the filling stage—not as an afterthought in a distribution warehouse.
Meeting Supply Chain and Scale-Up Challenges
Rising demand for 3-Hydroxy-N,N-diethylaniline in emerging applications has put local and global supply chains under pressure. Delays in upstream raw materials or logistics bottlenecks threatened some industries. Thanks to our position as an original producer, we offer supply resilience—with stock buffers at our own manufacturing location and logistics solutions that shorten lead times. Our manufacturing process is optimized for reliable, uninterrupted output, supporting partners as they scale new products or ramp up volumes.
Are there any specific storage, transport, or regulatory compliance requirements associated with handling and shipping 3-Hydroxy-N,N-diethylaniline?
Working with 3-Hydroxy-N,N-diethylaniline means facing a set of handling, storage, and compliance challenges that come hand-in-hand with aromatic amines. Over decades of producing this specialty intermediate, we’ve honed our processes specifically around safe material management and environmental control. This approach ensures that our team, our facility, and our supply chain maintain high standards—both for quality and safety.
Safe Storage Built Into Our Process
3-Hydroxy-N,N-diethylaniline requires a tightly controlled storage environment. Our standard warehouse stores it in sealed, clearly labeled containers made of compatible materials that prevent reaction with the contents. We keep these containers away from high-heat zones and direct sunlight to minimize any risk of decomposition or volatility. Our inventory is rotated systematically, limiting the time any batch stays on the shelf and reducing potential for aging or contamination.
Our storage areas use temperature and humidity monitoring. When necessary, we incorporate local ventilation. Our training emphasizes prompt clean-up of minor spills, along with the proper use of PPE. We make these protocols routine, not exceptions.
Transportation: Reducing Risk Starts Early
From the first step—sealing the drum in our plant—we focus on secure, regulation-compliant packaging. We use robust drums with tamper-evident closures. We affix clear hazard labeling that complies with internationally recognized transport standards, including UN classification when needed. Vehicles are scheduled for direct routes to customer sites or approved warehousing with strict cargo documentation maintained through chain of custody. Drivers and handlers receive targeted training for chemical emergencies and spill response. We minimize transit times to maintain product integrity throughout the journey.
Compliance: Experience Makes a Difference
Our regulatory team stays current with national and global requirements. We monitor updates to GHS labelling, Dangerous Goods transport codes, and chemical registration frameworks such as REACH. SDS and regulatory documentation come updated with every shipment. Our internal audits regularly check that labeling, packing, and record-keeping match or exceed compliance standards and that product characteristics reported in documentation mirror our own quality-control results.
We work closely with local environmental authorities and industrial parks, cooperating on best practices for chemical inventory reporting and emergency response. Our history with aromatic amines gives us firsthand understanding of both the legal and environmental responsibilities involved. Waste and residue management fit into our ISO-certified process controls, ensuring spent material is neutralized or transferred to approved waste processors.
Looking Forward: Practical Solutions From the Factory Floor
Modern chemical logistics evolves rapidly, and adapting to tightening standards has become a daily reality. Advances in packaging materials, automated warehouse tracking, and digital documentation bring measurable improvements. We invest substantially in safer material handling and regular workforce training because protecting people and the environment aligns with both our core values and long-term operational stability.
We treat chemical safety as a shared responsibility across our company’s production, packaging, and logistics network. Our focus stays firmly on providing our customers reliable, compliant, and traceable 3-Hydroxy-N,N-diethylaniline—delivered directly from our own facility, backed by our technical expertise and operational experience.
Technical Support & Inquiry
For product inquiries, sample requests, quotations or after-sales support, please feel free to contact me directly via sales2@liwei-chem.com, +8615380400285 or WhatsApp: +8615380400285