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3,4-Dimethylbenzylamine

    • Product Name 3,4-Dimethylbenzylamine
    • Alias 3,4-Xylylamine
    • Einecs 214-205-7
    • 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
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    Specifications

    HS Code

    643091

    Name 3,4-Dimethylbenzylamine
    Cas Number 2725-48-6
    Molecular Formula C9H13N
    Molecular Weight 135.21 g/mol
    Appearance Colorless to pale yellow liquid
    Boiling Point 220-224 °C
    Melting Point -6 °C
    Density 0.948 g/cm3 at 25 °C
    Refractive Index 1.532
    Flash Point 91 °C
    Solubility In Water Slightly soluble
    Purity Typically ≥98%
    Synonyms α-(3,4-Dimethylphenyl) methylamine
    Storage Conditions Store in a cool, dry, well-ventilated place

    As an accredited 3,4-Dimethylbenzylamine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing A 100 mL amber glass bottle with a secure screw cap, labeled "3,4-Dimethylbenzylamine," featuring hazard and handling information.
    Shipping 3,4-Dimethylbenzylamine is typically shipped in tightly sealed containers, protected from moisture and incompatible substances. It should be packaged in chemically-resistant, labeled materials and transported according to local, national, and international regulations. Shipping conditions generally require a cool, well-ventilated area, avoiding heat, ignition sources, and direct sunlight for safety and stability.
    Storage 3,4-Dimethylbenzylamine should be stored in a tightly closed container in a cool, dry, and well-ventilated area away from incompatible substances such as strong oxidizers and acids. Protect from moisture and direct sunlight. Ensure appropriate labeling, and store at room temperature or as specified by the manufacturer’s guidelines. Keep away from sources of ignition and follow all standard laboratory safety protocols.
    Application of 3,4-Dimethylbenzylamine

    Applications of 3,4-Dimethylbenzylamine in Industrial Manufacturing

    3,4-Dimethylbenzylamine is a specialty aromatic amine used by global manufacturers as a synthesis intermediate and processing aid in several tightly regulated industrial sectors. As a dedicated producer, we ensure technical grade material meets real product-line specifications so customers can achieve consistent batch performance in critical downstream segments. Below are major application scenarios and their unique technical requirements.

    1. Pharmaceutical Intermediate for Active Ingredient Synthesis

    In branded and generic pharmaceutical production, process chemists deploy this amine as a building block for APIs such as beta-blockers and certain antihistamines. Its methyl-substituted aromatic ring pattern enables regioselective alkylation and reductive amination steps, feeding downstream coupling or cyclization reactions under cGMP-validated conditions. Direct addition into multi-step synthesis enables stringent traceability and lot-to-lot reproducibility throughout the drug’s lifecycle.

    Industry compliance standards

    • ICH Q7 GMP for Active Pharmaceutical Ingredients
    • USP, EP, JP monographs (when specified in API synthesis route)
    • FDA 21 CFR Parts 210/211
    • EU EMA/INS/GMP guidelines

    Typical usage ratio

    • Batch use: 0.2–0.9 molar equivalents per API intermediate step; adjusted case-by-case based on stoichiometry and yield targets

    Downstream process integration

    • Added during key condensation, alkylation, or reductive amination procedures in reactor trains before final purification

    Final product types

    • Beta-blocker APIs (e.g., metoprolol, betaxolol)
    • Histamine receptor antagonists
    • Custom pharmaceutical intermediates and building blocks
    • Regulatory-submitted drug substance batches

    2. Curing Agent Component in Epoxy Resin Systems

    Major producers of advanced composites and coatings select this amine as a co-curing agent in two-component epoxy resin systems. Its molecular structure modifies cross-link density, improving flexibility or impact strength based on formulation needs in automotive, electronic, and industrial coatings curing. Customers precisely meter its addition during mixing to control final polymer network properties and meet third-party durability or aging validation tests.

    Industry compliance standards

    • ISO 9001:2015 Quality Management for chemical manufacturing
    • ISO 14001:2015 Environmental Management (waste & emissions)
    • ASTM D1652 (Epoxy Curing Materials Test Methods)
    • REACH (EC) No 1907/2006 registration for volume supply in EEA

    Typical usage ratio

    • 1–6 parts per hundred resin (phr), adjusted by required glass transition temperature, final flexibility, and chemistry of base resin

    Downstream process integration

    • Introduced into blending lines as a secondary or tertiary amine toughening agent before resin application or molding

    Final product types

    • Electrical encapsulants for circuit boards
    • High-impact industrial floorings
    • Fiber-reinforced composite panels used in transport and construction
    • Protective coatings for metal substrates

    3. Intermediate in Agrochemical Active Ingredient Manufacture

    Industry leaders in crop protection use this aromatic amine as a core raw material for synthesizing active ingredients in selective herbicides and seed dressings. Its methyl substituents help tailor biological selectivity. The material enters production in finely controlled, proprietary reaction steps, and all synthesis data must trace back to original batch certificates to match regulatory filings made in key agricultural markets.

    Industry compliance standards

    • FAO/WHO Specification and evaluation for plant protection products
    • OECD Principles of Good Laboratory Practice (GLP)
    • China ICAMA registration for agrochemical AIs
    • EU Regulation (EC) 1107/2009 (Plant Protection Products)

    Typical usage ratio

    • 0.6–1.1 molar equivalents based on active ingredient synthesis yield requirements and impurity clearance

    Downstream process integration

    • Used as key intermediate added to controlled reactors in closed systems with automated monitoring before final formulation of technical-grade actives

    Final product types

    • Phenoxy-based herbicides
    • Grain treatment seed dressings
    • Custom-blended pre-emergent weed control agents
    • Intermediates for further fine chemical modification in multinational facilities

    4. Modifier in Polyurethane Catalyst Systems

    Major polyurethane systems houses incorporate this amine as a chemical modifier in catalyst blends for both rigid and flexible foam production. Its controlled reactivity profile allows for precise adjustment of cure time and final cell structure. Technical teams dose the chemical at the mixing head, tailoring expansion rate and foam hardness for automotive, refrigeration, and furniture applications, according to end-customer process data.

    Industry compliance standards

    • ISO 4589 (Oxygen Index for Polymeric Foams)
    • UL 94 Flame Retardancy Test for Foamed Plastics
    • REACH-compliant supply with registered volume tonnages
    • US EPA TSCA Inventory listing for US foam manufacture

    Typical usage ratio

    • 0.02–0.12% by total foam system weight, fine-tuned by isocyanate/polyol ratio, ambient temperature, and required cycle time

    Downstream process integration

    • Metered into catalyst feed at mixing head alongside blowing agent; can be pre-blended with other tertiary amines for custom cure packages

    Final product types

    • Automotive seat cushions (flexible PU)
    • Household appliance insulation (rigid PU)
    • Packaging foams with custom hardness
    • Commercial acoustic panels and thermal insulation sheets

    5. Fine Chemical Intermediate for Dyes and Pigments

    Manufacturers producing specialized colorants for textiles and plastics industries utilize this material as a precursor in the synthesis of advanced organic dyes. Its structure is ideal for electrophilic substitution and diazotization steps, which in turn define hue purity and fastness. Chemists feed it into proprietary synthesis steps under rigorous HSE controls, ensuring color stability and minimal by-product carryover into end-use dispersion and masterbatch formulations.

    Industry compliance standards

    • OEKO-TEX® Standard 100 for textile chemical residues
    • ISO 9001:2015 for dye and pigment manufacturing
    • EU REACH Annex XVII (AZO dye restrictions)
    • GADSL (Automotive industry global material directories)

    Typical usage ratio

    • Typically 1.0–2.4 molar equivalents per coupler, adjusted for color strength and cost-in-use targets

    Downstream process integration

    • Added as primary aromatic coupling agent in liquid-phase batch reactors during colorant synthesis; monitored for residuals prior to isolation and milling

    Final product types

    • Monazo and diazo textile dyes
    • Organic pigment dispersions for plastics and inks
    • Colorfast masterbatches for synthetic fibers
    • High-performance coatings colorants

    6. Synthesis of Fragrance and Aroma Compounds

    Specialty firms in fine aroma chemical manufacturing apply this amine as a building block to create musk-type and floral odorants. Its defined ring substitution pattern provides a controlled platform for subsequent Friedel-Crafts alkylation and oxidation. In practice, operators introduce precise dosages to reactor vessels, tracking batch genealogy for IFRA-compliant end use. Purity and trace impurity management remain pivotal to guarantee olfactory profile consistency and regulatory safety for all formulations headed toward personal care or perfumery.

    Industry compliance standards

    • IFRA Standards for fragrance safety assessment
    • ISO 9235 (Aromatic raw materials - terminology)
    • Good Manufacturing Practices for Cosmetic Ingredients (EFfCI GMP)
    • REACH Notification for aroma chemicals

    Typical usage ratio

    • 0.5–2.5 equivalents per step, subject to yield optimization for target aroma notes and specific end-use application limits

    Downstream process integration

    • Entered during initial skeleton synthesis or as refunctionalization agent in aroma compound synthesis line, tracked via lot-specific COAs

    Final product types

    • Musk-type fragrance molecules
    • Heterocyclic aroma intermediates
    • Bespoke perfumery bases
    • Personal care flavoring agents
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    Certification & Compliance
    More Introduction

    3,4-Dimethylbenzylamine: A Closer Look from the Manufacturer’s Perspective

    Our Experience with 3,4-Dimethylbenzylamine

    Working in chemical synthesis every day, we encounter a wide array of raw materials and specialty chemicals. Among the aromatic amines, 3,4-Dimethylbenzylamine stands out because of its unique methyl substitution on the aromatic ring. Years on the manufacturing floor and in the lab have made the nuances of this compound clear to us. Its CAS number carries weight, but what matters is performance in every application, from pharmaceuticals to performance coatings. We approach each batch according to rigorous process controls, understanding the challenges and rewards this compound brings.

    What Makes It Different?

    Looking at the molecular structure, it has two methyl groups attached at the 3 and 4 positions of the benzene ring, with the benzylamine side chain providing the reactive amine function. Chemists value these methyl substitutions for reasons that go beyond minor tweaks; they change the way the compound behaves, both chemically and physically. The product arrives as a clear to pale yellow liquid, carrying a barely noticeable odor. Compared to unsubstituted benzylamine or its 2,4-dimethyl counterpart, subtle differences become obvious in terms of boiling point and reactivity—a crucial consideration for our reaction engineers, who have seen kinetic rates shift based on this very structure.

    From decades of hands-on production, we’ve learned that even small changes to the substitution pattern can influence yield, downstream impurity levels, and the suitability of the amine for targeted synthesis. These differences might sound minor unless you’ve watched a reaction refuse to complete in the middle of a pilot batch because the material source changed. With 3,4-dimethyl groups, certain undesired side reactions are less pronounced, and downstream separation often gets easier—shaving both time and cost from operations.

    From Reactors to Real-World Applications

    We manufacture 3,4-Dimethylbenzylamine for a range of industries. Our most frequent users include pharmaceutical researchers, agrochemical labs, and makers of specialty polymers where amine building blocks serve as critical core intermediates. In one recent case, a customer shifted to our product to synthesize a key antibacterial ingredient, citing better consistency in condensation reactions and cleaner chromatographic profiles. Detailed feedback like this helps us adapt and fine-tune our synthesis parameters.

    Because of its configuration, 3,4-Dimethylbenzylamine doesn’t just substitute for benzylamine in a one-for-one swap. In medicinal chemistry, the methyl substitutions increase lipophilicity, often giving finished products stronger interactions with target biological molecules. Our technical advisors spend time with development teams, examining how our compound integrates with their pipeline, from laboratory scale through pilot reactors to multi-ton annual demand.

    Quality and Specifications

    Our batches hit over 99% assay by GC, with tight control over water content and residual starting materials. Every step requires discipline—checks, calibrations, and hourly column monitoring. On occasion, we’ve had clients request custom moisture thresholds or alternate solvent profiles, and our facility is set up to handle those specifics. Such flexibility is difficult for a repackager but essential for the manufacturer with process knowledge baked in.

    Each year, regulatory frameworks and customer standards shift. We document line cleaning, residue checks, raw material traceability, not just for compliance, but for auditability. Sometimes those controls seem excessive right up until a product recall—never from our lines—hits someone buying off a crowded marketplace. Doing it right the first time solves headaches later.

    Challenges in Manufacturing and Consistent Output

    Our experience says reliable 3,4-Dimethylbenzylamine relies on consistent raw benzyl sources and precise control during N-alkylation. Impure or poorly isomerized starting materials can introduce isomer blends, increasing downstream workload and potentially introducing toxicological risks. Early in our manufacturing journey, we learned this lesson through increased customer complaints when our benzyl supply varied by supplier. Since then, we never compromise on material validation. Rigorous supplier qualification and in-house QC add real cost but prevent interrupted customer batches.

    Oxidation presents another challenge in both production and storage. Even trace oxygen can darken material, impact shelf-life, and taint yields in secondary syntheses. From the start, we designed our process to include inert atmospheres and minimized transfer steps. It also led us to overhaul storage protocols—a rare but valuable lesson after a warehouse batch aged poorly under high summer humidity years ago, despite sealed drums. Some lessons never fade; our team shares stories like these with new hires.

    How the Product Evolves Over Time

    Market requirements don’t stay put. We’ve fielded increasing requests for REACH registration documentation, Kosher/Halal-compatible processing, and detailed elemental impurity reports for pharma clients. While the core synthesis remains, these new directions require us to revisit and refine each process, from raw input to final QA. We don’t treat these as simply “box-checking” exercises; they require changes in mindset and sometimes equipment retooling.

    Over time, improvements in our analytic techniques—from older wet chemistry titrations to today’s high-resolution GC-MS systems—have let us spot and correct trace contaminants previously missed. Continuous investment here is essential to deliver material that meets not just our standards, but the far more demanding requirements of our major multinational buyers.

    The Decision to Choose 3,4-Dimethylbenzylamine

    Customers deciding between aromatic amines evaluate price, availability, and of course, consistency in application. While generic options exist, a custom synthesis or direct-from-manufacturer batch can answer more exacting specs. Clients have told us that sourcing from us often reduces batch-to-batch troubleshooting at their end—less process rework, fewer specification failures, and more consistent outcomes from synthesis to formulation.

    In custom synthesis, there is rarely a one-size-fits-all amine. Some structures require the bulkiness of t-butyl groups or electron-donating oxy functions. Where a balance of reactivity and steric bulk is called for, 3,4-Dimethylbenzylamine carves a unique niche. Experienced chemists recognize these subtleties by their effects in the flask long before a purity certificate confirms the theory.

    User Feedback Shapes Continuous Improvement

    Many innovation cycles—the move toward greener syntheses among them—start with direct feedback from end users. For example, we once worked with a company struggling to reduce halide byproducts in their downstream reaction. Collaborative troubleshooting led us to adjust the crystallization point of our product, reducing entrained mineral acid carryover. The client later reported both higher throughput and easier wastewater treatment. Feedback like this drives us to refine processes continuously, far beyond what a trading company could deliver.

    Safety is an everyday conversation. Spills, vapor monitoring, and waste handling all factor into our process flow. Our safety officers consult daily with engineering and operations—every improvement matters, both for our workers and for the users who depend on our adherence to best practices at every scale.

    The Big Picture: Responsibility and Reliability

    Making a specialty chemical isn’t just about filling drums and booking orders. We consider logistical reliability—supply chain resilience, contingency planning for transport disruptions, and honest communication when unforeseen situations arise. After decades in business, we have stories of urgent shipments and unexpected plant outages. Navigating those challenges builds relationships and trust.

    Committing to environmental stewardship shapes our business too. We’ve invested in closed-loop systems to recycle solvents, minimize emissions, and reduce process waste at every step. These decisions often stem from both regulatory requirements and internal customer audits. Sustainable practices in chemical manufacturing aren’t marketing—they’re investments in our own future profitability and the safety of our surrounding communities.

    Beyond the Lab Bench: Working with Our Customers

    Our technical service teams are never far from the factory floor. We routinely visit customer sites to audit integration points, offer troubleshooting support, and review finished product specs. Unlike many third parties, we own up to issues and see firsthand the end use for what we ship. Over time, this approach has meant deeper partnerships, more regular contract renewals, and, perhaps most important, a stronger sense of mutual accountability.

    We don’t try to shoehorn 3,4-Dimethylbenzylamine into every use case, and we don’t chase contracts where another amine is a better fit. Direct manufacturer relationships allow for honest feedback and better risk management for both sides. That’s why we focus attention on real-world challenges rather than just shipping the next load out the gate.

    Continuous Adaptation and Looking Ahead

    Current trends point toward broader regulatory scrutiny and consumer demands for traceable, ethically manufactured chemicals. We anticipate questions before they surface—tracking provenance of petroleum-based benzyl sources, mapping solvent use, and preparing full traceability dossiers for clients facing new scrutiny from their own customers or regulatory authorities. Our processes evolve as regulations do, never standing still.

    We see technology as both a challenge and an opportunity. Implementation of process analytical technology (PAT), batch reactors tied to real-time data feeds, and cloud-based batch history archiving aren’t just theoretical—they’re necessary components of a modern manufacturing facility. Each investment pays off in better product quality, greater scalability to meet surges in demand, and stronger QA/QC documentation. Those efforts all serve a single goal: trusted supply for our users.

    An Inviting Perspective on 3,4-Dimethylbenzylamine

    We see each batch as more than a commodity. Over the years, experience has taught us which drum will deliver flawless performance and which needs a closer look before it leaves the warehouse. Customers choose 3,4-Dimethylbenzylamine for reliable supply, tight specification, unique reactivity, and support from a production team with decades of accumulated know-how. From one-off research campaigns to long-term production contracts, we’ve supported synthetic breakthroughs and commercial product lines alike. The road from raw benzyl to carefully finished amine includes hard lessons and a sense of ongoing responsibility to the end users who trust our process.

    FAQ: Common Questions Answered from the Production View

    Chemists often ask if the dual methyl groups on the 3 and 4 positions affect reactivity compared to alternatives like the singly methylated or 2,4-disubstituted analogs. The answer is yes, and we see measurable changes in both kinetics and byproduct profiles during scale-up. Others want to know how moisture content influences subsequent reactions. We rigorously dry every batch and validate it before packing. Clients in pharma, polymer, and agrochemical fields mention residual catalyst traces. Our in-line purification steps remove legacy metal traces from the reaction, enabling safer, higher-purity outputs for sensitive downstream applications.

    A last common question covers packaging. We supply this amine in either steel or HDPE drums, according to compatibility and the storage life expected by our users. Each container matches both the reactivity profile of the amine and the handling requirements of users from research-scale labs to bulk producers. Labels reflect up-to-date hazard information, supporting safe storage, transport, and usage.

    Summary: Why the Manufacturer’s Approach Makes the Difference

    Decades of hands-on experience with 3,4-Dimethylbenzylamine give us a perspective rarely matched by resellers or traders. Each small improvement—tighter impurity specs, faster shipping, more customizable documentation—originates in our labs and plant, shaped by direct feedback from those who rely on us. We believe chemical manufacturing should never be separated from its users. Every successful formulation, pilot run, and scale-up begins with material that behaves as expected. Longstanding supplier relationships depend on open communication, verified consistency, and real accountability. For every customer, down the street or around the world, we deliver not just a chemical, but confidence batch after batch.