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N,N-Dimethyl-4,4'-Azodianiline

    • Product Name N,N-Dimethyl-4,4'-Azodianiline
    • Alias Bismustard
    • Einecs 219-301-9
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    566060

    Cas Number 101-61-1
    Molecular Formula C14H16N4
    Molar Mass 240.31 g/mol
    Appearance Yellow to brown solid
    Melting Point 146-148 °C
    Solubility Insoluble in water
    Density 1.25 g/cm³
    Synonyms 4,4'-Bis(dimethylamino)azobenzene; DMAB
    Iupac Name 4,4'-azo-bis(N,N-dimethylaniline)
    Pubchem Cid 7670
    Ec Number 202-978-7
    Flash Point 235 °C

    As an accredited N,N-Dimethyl-4,4'-Azodianiline factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The chemical is packaged in a 100-gram amber glass bottle, sealed with a screw cap and labeled with safety and identification information.
    Shipping N,N-Dimethyl-4,4'-Azodianiline should be shipped in tightly sealed containers, clearly labeled with hazard information. Transport under cool, dry conditions as per local and international regulations for chemicals. Protect from physical damage and incompatible substances. Ensure documentation complies with regulatory requirements, including safety data sheets and hazard classifications. Use appropriate UN packaging if required.
    Storage **N,N-Dimethyl-4,4'-Azodianiline** should be stored in a cool, dry, and well-ventilated area, away from incompatible substances such as strong oxidizers and acids. Keep the container tightly closed and protected from light and moisture. Use appropriate chemical storage cabinets, ideally for organic bases or amines. Always label containers clearly and handle under a fume hood to avoid inhalation and exposure.
    Application of N,N-Dimethyl-4,4'-Azodianiline

    Applications of N,N-Dimethyl-4,4'-Azodianiline in Industrial Manufacturing

    As the original producer of N,N-Dimethyl-4,4'-Azodianiline, we precisely engineer this specialty intermediate to meet strict global benchmarks within established industrial sectors. Below, we detail its anchored roles across multiple downstream manufacturing environments, addressing specific regulatory compliance, dosage decisions, integration steps, and real-world end product lines.

    1. High-Performance Polyurethane Elastomer Systems

    Polyurethane manufacturers use N,N-Dimethyl-4,4'-Azodianiline as a chain extender to adjust mechanical and thermal properties in specialty elastomers for demanding applications. Technical requirements necessitate consistent product purity and controlled amine content, affecting crosslink density and final elastomeric behavior crucial for advanced transport and industrial use. The material introduces flexibility and improves low-temperature resilience in thermoset and thermoplastic polyurethane formulations.

    Industry compliance standards

    • ISO 9001 for quality management
    • RoHS Directive (2011/65/EU, as updated), applicable to elastomer use in electrical and electronic assemblies
    • Automotive OEM technical sourcing specifications (e.g., VW TL 52082, Daimler DBL 5450 for non-metal materials)
    • REACH SVHC requirements

    Typical usage ratio

    • 0.5–2.5% w/w of total polyol system, adjusted based on desired Shore hardness or environmental aging resistance; ratio refinement according to chain extender/reactant calculation and customer cure cycle

    Downstream process integration

    • Introduce during prepolymer chain extension phase, after polyol and diisocyanate reaction; blend under inert atmosphere and precise temperature control (typically 45–70°C)

    Final product types

    • Industrial wheels and rollers
    • Automotive suspension bushings
    • Mining screens and hydrocyclone liners
    • Specialty gaskets for chemical equipment

    2. Synthesis of High-Temperature Epoxy Hardeners

    Epoxy resin formulators incorporate N,N-Dimethyl-4,4'-Azodianiline to produce custom aromatic amine curing agents. Its molecular structure allows tuning of gel time and glass transition temperature, enabling resin composites for aerospace, electronics, and high-load civil engineering structures. Downstream QC protocols rely on lot-to-lot reactivity and compatibility for critical process window control.

    Industry compliance standards

    • UL 94 for flammability in composite applications
    • ASTM D5048 and D1652 for epoxy system component analysis
    • EN 45545-2 for rail industry fire safety
    • REACH Annex XVII aromatic amine migration limits

    Typical usage ratio

    • Epoxy hardener synthesis: 3–7% w/w relative to total resin formulation; actual input refined according to target cure profile and mechanical property specification

    Downstream process integration

    • Add during synthesis of multi-component amine adducts or as direct blend with epoxy prepolymer; incorporate under controlled agitation at 40–60°C prior to curing operations

    Final product types

    • Printed circuit board laminates (FR-4, high-Tg grades)
    • Aerospace structural composites
    • Automotive under-the-hood adhesives
    • Flooring and bridge deck overlays

    3. Advanced Polyimide Resin Formulations

    In polyimide synthesis, downstream processors rely on N,N-Dimethyl-4,4'-Azodianiline as a diamine building block for polycondensation with dianhydrides. This influences thermal stability and chemical resistance for specialty films or molded components in microelectronics and aerospace thermal insulation. Process control over diamine purity is critical for dielectric and mechanical performance consistency in mission-critical parts.

    Industry compliance standards

    • IPC-4101 for base materials in electronic laminates
    • UL 746B for polymeric material properties in electrical components
    • AMS 3568 for polyimide molding compounds (aerospace)
    • RoHS compliance for halogen-free insulation

    Typical usage ratio

    • 0.8–1.1 molar equivalents versus dianhydride species, optimizing imidization degree and end-use property targets per final application; lab-scale ratio scaling up as required by batch size

    Downstream process integration

    • Dissolve into polar aprotic solvent (e.g., NMP or DMF) during polyamic acid synthesis, followed by thermal or chemical cyclodehydration; carefully control stoichiometry and temperature ramp (160–300°C)

    Final product types

    • Flexible printed circuitry base films
    • High-frequency electrical insulation tapes
    • Aerospace insulation foams and honeycomb panels
    • Dielectric substrates for advanced IC packaging

    4. Organic Pigment Intermediate for Specialty Colorants

    Pigment manufacturers use N,N-Dimethyl-4,4'-Azodianiline as a coupling component to synthesize complex azo and azomethine dyes. These colorants feature high tinting strength and stability against heat and light, addressing the needs of coatings, plastics, and industrial ink formulations. Strict control of by-product impurities and conversion efficiencies is necessary for pigment consistency and downstream safety standards.

    Industry compliance standards

    • EN 71-3 for heavy metal and amine release in toy coatings
    • ISO 18451-2 for pigment compositional declaration
    • GMP certification for food-contact colorants in relevant markets (EU 2023/2006, FDA 21 CFR)
    • REACH Annex XVII (aromatic amine restrictions in consumer products)

    Typical usage ratio

    • Varies from 0.7 to 1.2 molar equivalents as dictated by target chromophore synthesis, pigment particle size, and medium compatibility

    Downstream process integration

    • React in aqueous or organic phase during diazotization and coupling synthesis step; manage reaction kinetics and filtration to maximize pigment yield and purity

    Final product types

    • High-heat-resistant automotive paints
    • UV-stable masterbatch colorants for plastics extrusion
    • Jet and flexo inks for industrial printing
    • Special effect pigments in consumer electronics housings

    5. High-Grade Thermosetting Resin Accelerators

    Downstream thermoset resin formulators integrate dimethyl azodianiline derivatives to modify curing rate and final crosslink structure in phenolic and melamine resin systems. The specific amine functionality allows precise adjustment of network structure for applications where strict dimensional stability and heat tolerance are necessary, such as electronics encapsulation and industrial friction materials.

    Industry compliance standards

    • IEC 60695 for flame resistance in electrical encapsulants
    • ISO 3233 for resin solid content control in coatings
    • JIS K6911 for thermoset molding compounds
    • REACH conformity for amine content

    Typical usage ratio

    • Accelerator phase: 0.5–1.5% w/w of total resin solids, optimized based on thermal cure schedule and exothermic reaction monitoring

    Downstream process integration

    • Disperse in pre-polymer stage under controlled mixing; incorporate prior to filler and reinforcement addition; monitor viscosity and reactivity for batch adaptation

    Final product types

    • Electronics encapsulation compounds
    • Phenolic resin friction composites (brake pads, clutch plates)
    • Industrial corrosion-resistant linings
    • Laminated circuit board resins
    Free Quote

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    Certification & Compliance
    More Introduction

    Introducing N,N-Dimethyl-4,4'-Azodianiline: Manufacturer’s Perspective

    Paving the Way for Advanced Polymer Synthesis

    Rolling out N,N-Dimethyl-4,4'-Azodianiline to our clients never feels like routine business. Years of hands-on experience in producing this specialty chemical have shown us how such compounds quietly shape entire industries. Manufacturing this diamine requires careful selection of raw materials and tight process control, the kind of expertise only gained through long-term focus and real-world feedback.

    Unlike many bulk intermediates, N,N-Dimethyl-4,4'-Azodianiline (commonly recognized by its molecular structure C16H20N4) serves as a backbone for select polymers, dyes, and specialty resins. Our team has worked hard to tune this product for users who depend on it for technical reliability in every batch. In applications that tolerate little margin for error, purity levels and precise dimethylation have a much larger impact than some realize. Our operators often say, ‘Either you nail the consistency or the final product simply doesn’t work like it should.’

    Specification Integrity Matters More Than Paperwork

    Let’s talk numbers. Our high-purity offering consistently reaches threshold specifications, holding impurity content below 0.2% and staying in line with internal benchmarks. Experience tells us purity swings matter: small variations show up quickly down the line, especially during critical polymerizations or in the making of colorants for technical plastics and thermosetting matrices.

    Labs often report undesired color shading or difficulty controlling the molecular weight when using poorly controlled azodianilines. We’ve examined these setbacks alongside technical managers from film, fiber, and engineering plastics operations. Trace amines and dust from sub-optimal synthesis become more than minor annoyances—they interfere with process stability and force waste. Our team addresses those details directly at the manufacturing level, not as an afterthought via blending or surface treatments.

    Usage: Beyond the Surface Layer

    We see two main uses for N,N-Dimethyl-4,4'-Azodianiline in industry. It’s most valued as a hard base in polycondensation reactions for high-performance epoxy resins and select polyurethanes. Here, the diamine core gives excellent chain extension and can influence crosslink density. We also see it used in specialized azo coupling reactions, especially for developing high-stability dyes and pigments that withstand sunlight, solvents, and challenging mechanical environments.

    As our customers broaden their demands—think electronics, protective coatings, or advanced composites—dimethylation of the core aromatic structure becomes a central point. Simple aniline derivatives cannot carry the weight in such demanding service. Basic N,N-dimethylation changes solubility and chemical reactivity, enabling customers to reach process speeds and yields not possible with non-methylated variants. Our R&D teams, working alongside technical partners, have shown that switching away from classic 4,4’-azodianiline or 4,4'-methylenedianiline creates tangible improvements in both polymer rheology and final component stability.

    How This Grade Differs from Other Azodianiline Products

    Stepping behind the scenes, production of N,N-Dimethyl-4,4'-Azodianiline stands apart from simple amines or precursor compounds. Not all grades work for all systems. Standard anilines or lower-cost diamines lack the specific chemical footprint found in this structure. Customers often ask about substituting more common grades, especially when facing supply chain pressure. In our hands, these shortcuts introduce risks. Molecular substitution with dimethyl groups tunes the electronic properties, giving this compound improved stability during cure—in short, fewer side reactions and less unwanted off-gassing for high-spec adhesives or encapsulants.

    We’ve tested alternate diamines and seen where they fall short: incomplete reactions, lower glass transition temperatures, or reduced UV resistance. Sometimes customers will bring in outside material, hoping for a price break, but wind up spending more on quality control or fighting unexpected polymer failure. At manufacturing scale, these differences go beyond academic interest—you feel them in every batch and see them in every rejected part. Over time, we’ve refined our process to enhance crystallinity, manage volatility, and cut stray monoamines and oligomers that lead to off-color or fish-eyes in molded components.

    Model and Application: Not All Batches Are Created Equal

    A chemical’s success traces straight to meticulous process design. Our experienced operators and technical leads speak from years of experience running this production line. We can trace lot-to-lot quality because our reactors run tight temperature, pressure, and stoichiometry controls. A change by just a few degrees, or a bad solvent charge, leads to telltale signs in the end product—a pale hue or characteristic odor. We conduct early-stage gas chromatography and HPLC monitoring on every batch, not as a box-ticking exercise but as the essential checkpoint for consistency.

    In the field, composite and molding clients demand product conforming to tight specifications: controlled particle size where needed, zero residual solvents, and minimal dust. Process engineers looking for high-flow or transparent polymers notice when a batch drifts even slightly from standard. This is not a product you can buy by the drum from any trader and expect the same performance. It needs a traceable provenance and process discipline that most commoditized facilities avoid.

    A few years ago, we retooled our reactors and drying equipment in direct response to a customer building next-generation encapsulants for electronics. They needed diamines tuned for both electrical insulation and ultra-low color index. We worked with them through multiple trials, manually sampling at intermediate steps and tightening the purification workflow until the product passed their application-specific tests. Experiences like this taught us that process flexibility and memorable relationships drive better chemistry—literally and figuratively.

    Reducing Risks and Enhancing Safety

    From operator training to process design, health and safety drive every aspect of our operation. Handling N,N-Dimethyl-4,4'-Azodianiline requires dedicated engineering and procedural controls. We’ve learned through collective practice that proper ventilation and containment cut down exposure risks. Resellers and unverified importers sometimes downplay this, and clients eventually pay the price—in plant downtime, faulty equipment, or compromised lab results.

    Rigorous material handling is not just about ticking off safety boxes. Each plant stoppage for cleaning or process upsets costs time and eats into everyone’s margin. Our customers appreciate up-front honesty regarding required safeguards, and we back up packaging and documentation with clear transport guidance. Lately, we have invested in enhanced drum lining, leak testing, and visual inspection protocols so plant managers and operators can focus on their work without worrying about packaging failures or contamination creeping in.

    Market Shifts and Supply Chain Realities

    Real-world production doesn’t happen in a bubble. During market disruptions, supply chains show their weak spots. A few years back, logistics constraints led to a rapid spike in diamine prices and frustrated buyers looking for reliable shipments. Having direct production instead of relying on imported intermediates gave us and our customers greater leverage—lower risk of unplanned substitutions, fewer delays, and less guesswork about container provenance.

    Shortcuts often backfire. We’ve seen resins and intermediates from aggressive importers lose product quality or stability due to poor handling or excessive age during transit. Technical partners learned the hard way that materials engineered and packaged for local climates perform better across outdoor storage, plant transfer, and climate extremes. Our domestic supply means tighter control over timelines, reduced idle stock, and stronger technical support. Feedback from downstream users drove further internal investment in quality improvement, predictive inventory management, and tailored solutions for serialized production schedules.

    Supporting Advanced R&D and Next-Generation Materials

    Research organizations, universities, and startups often reach out looking for more than off-the-shelf raw materials. Our direct manufacturing capacity gives flexibility for tailored batch sizes, experimental purification grades, and collaborative development. Laboratories often request small-lot samples or custom process parameters—different solvent traces, dry blends, or process documentation for pilot trials.

    By keeping batch records, synthesis parameters, and test data on every lot, we speed up technical qualification for new materials in emerging fields. In the past year, client teams have incorporated our product in thermally conductive polymers, ultra-high-clarity films, and even additive formulations for electronic displays. Each project brings new questions about reactivity, compatibility, and process stability. Our technical experts stand ready to offer direct answers from the shop floor, not pre-packaged marketing claims. When an R&D group hits a challenge—such as crosslinking problems or color drift—we step in swiftly, drawing from firsthand plant knowledge and lab-proven results.

    Environmental Stewardship Shapes Process Choices

    Our company sees responsibility to the environment as central to chemical manufacturing. Many companies pay lip service to green chemistry; we take a more practical approach. Process water, mother liquors, and vent streams from azodianiline production contain potential hazards, so we route waste through a closed-loop neutralization and recovery system. Instead of sending contaminated residues to landfill, we recycle process solvents and treat effluents to meet—or exceed—regulatory norms. Over time, these investments shrink our waste burden, lower site operating costs, and help clients demonstrate supply chain responsibility to their own customers.

    Pushback sometimes arises over investing in environmental controls, especially with price-sensitive clients. Yet we have seen, firsthand, that operators working in a healthier environment deliver more stable product quality, work more efficiently, and stay loyal to the business. Waste volume dropped by nearly 20% after implementing closed-circuit distillation retrofits, and energy use per ton of product continues to decline with each facility upgrade. These concrete results show that environmental performance and manufacturing excellence go hand in hand, not as competing priorities but as two sides of the same coin.

    Reliability Through Onshore Production

    Having the entire process—from procurement, synthesis, through purification and packaging—in-house pays major dividends. Our clients don’t have to wonder who produced the product or if a drum sat on a dock halfway across the planet for half a year. During moments when supply chains seize up, we keep control over scheduling, documentation, and direct delivery. Our sales and technical teams work closely with manufacturing to ensure full traceability and batch-release testing. This connects the dots for clients seeking information to satisfy auditors, regulators, or internal QA processes.

    With each shipment, we include batch-specific test results and detailed process logs. Clients in aerospace and automotive segments regularly request these, especially for compliance or new material qualification. The value here comes from certainty: every kilogram matches a traceable batch record, synthesis log, and retained sample stored on-site to ensure reproducibility and accountability.

    Continuous Improvement Informed by Feedback Loops

    Direct engagement with processing and manufacturing teams sharpens our understanding of how each change impacts downstream performance. Every client success or challenge becomes a learning opportunity. Several years ago, users of N,N-Dimethyl-4,4'-Azodianiline in high-transparency films reported rare but frustrating haze formation during extrusion. After working with end users and analyzing multiple lots at both production and laboratory scales, we pinpointed a narrow contamination range linked to a supplier’s solvent grade.

    Rather than treat this as a one-off, our team redesigned in-line filtration and switched to an upgraded solvent source. The results, measured over six months, showed a sharp decline in off-spec films and greater uniformity across production shifts. Internally, this reinforced a simple lesson: real progress springs from detailed attention to lived experience and open communication—never from top-down mandates or off-the-shelf solutions.

    Looking Forward: Meeting Evolving Industry Demands

    Customers in materials science see rapid changes—demand for cleaner, safer, and more effective building blocks. New applications for dimensional stability, extreme temperature use, or electrical reliability drive us to keep improving. The relationship between technical suppliers and users looks less like a contract and more like a collaboration. Requests come through for specialty grades, trace analyses, or guidance on process upsets.

    With ongoing shifts in global logistics and environmental regulation, buyers need supply partners capable of pivoting quickly, sharing timely insights, and open about limitations and strengths. Tightly integrated production and willingness to invest in our own process shield our clients from volatility and cut needless surprises. We see every day as a chance to raise the bar a little higher.

    Why Partner Directly With a Manufacturer?

    Clients benefit most by engaging directly with people who understand how chemicals behave—not just in the lab, but at full production scale. Manufacturing brings a level of problem-solving often missing from trading houses or third-party brokers. Issues are dealt with in real time; quality improvement doesn’t wait on distant suppliers or uncertain documentation chains.

    Technical support draws on actual production data, not generic datasheets assembled from multiple origins. Reliability, transparency, and custom-tailoring flow naturally from a genuine manufacturing setup. Regulatory or downstream process surprises are handled seamlessly, because the answers are both on the shop floor and in the technical office.

    In Closing

    Years in the business have taught us one lasting lesson: it’s not enough to deliver a product that meets the books. N,N-Dimethyl-4,4'-Azodianiline, in the right hands, unlocks solutions in countless industries. Through ongoing investment, direct customer engagement, and a relentless push for better process controls, we strive to ensure each batch reflects our values and expertise. Our doors stay open to technical queries, process challenges, or collaborative trials, because each new question helps us create a stronger, safer, more reliable supply chain for everyone who depends on this key chemical.