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HS Code |
625074 |
| Cas Number | 13742-03-9 |
| Molecular Formula | C9H13N |
| Molecular Weight | 135.21 g/mol |
| Iupac Name | 2,4,5-Trimethylaniline |
| Appearance | Light yellow to brown liquid |
| Melting Point | 9-12 °C |
| Boiling Point | 256 °C |
| Density | 0.995 g/cm3 at 25 °C |
| Solubility In Water | Slightly soluble |
| Flash Point | 106 °C |
| Refractive Index | 1.566 |
| Synonyms | 2,4,5-Trimethylbenzenamine |
As an accredited 2,4,5-Trimethylaniline factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle, 100g, tightly sealed with screw cap; hazard labels for flammability and toxicity, clear chemical identification label. |
| Shipping | **Shipping for 2,4,5-Trimethylaniline:** 2,4,5-Trimethylaniline should be shipped as a hazardous chemical according to local, national, and international regulations. It must be packed in tightly sealed containers, kept away from incompatible substances, and protected from physical damage. Proper labeling and documentation, including safety data sheets, are required for safe transport. |
| Storage | 2,4,5-Trimethylaniline should be stored in a tightly closed container, in a cool, dry, well-ventilated area away from sources of ignition and incompatible substances such as oxidizing agents and acids. Keep it away from direct sunlight and moisture. Ensure proper labeling and store in a chemical safety cabinet designed for organic amines to prevent accidental release or exposure. |
Applications of 2,4,5-Trimethylaniline in Industrial Manufacturing2,4,5-Trimethylaniline functions as a core intermediate within several specialized chemical industries, supporting advanced synthesis of dyes, pharmaceuticals, agrochemicals, and rubber processing auxiliaries. As the direct producer, we supply this aniline derivative to major manufacturing segments that require high assay, traceability, and suitability for controlled environments. 1. Synthesis of Disperse Dyes for Polyester FibersThis chemical serves as a primary aromatic amine building block in the formulation of disperse dyes, particularly targeting deep yellow, orange, and brown shades used for polyester fiber dyeing. The methyl-substituted structure provides critical chromophore extension during diazotization and subsequent condensation steps. Downstream formulators apply it in controlled mole ratios for batch dye couplings, which influences both color fastness and migration properties on synthetic fibers. Industry compliance standards
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2. Intermediate for Active Pharmaceutical Ingredients (API) Synthesis2,4,5-Trimethylaniline acts as a protected amine intermediate in the multi-step synthesis of APIs, particularly those in the antihistamine and CNS therapeutic classes. Its methylation pattern tailors the reactivity and solubility profile required during subsequent halogenation or acylation cascades. We supply this intermediate with validated impurity profiles and detailed batch records to satisfy the needs of GMP-compliant pharmaceutical manufacturers. Industry compliance standards
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3. Agrochemical Synthesis: Herbicide and Fungicide IntermediatesIn agrochemical manufacturing, 2,4,5-Trimethylaniline provides a methylated aromatic nucleus for herbicide and fungicide intermediates, especially in triazine-based and aniline-derived protection agents. Its structure allows custom functionalization, enabling synthesis of products with tailored soil mobility and plant uptake characteristics. Industry compliance standards
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4. Rubber Processing Accelerators and AntioxidantsManufacturers of rubber products utilize this arylamine as a key base for synthesis of specialized accelerators and antioxidant agents. The methylated amine group influences physical properties such as flexibility, resistance to aging, and color retention in finished rubber parts. Our technical support teams work with compounders to verify suitability with their specific process flows. Industry compliance standards
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5. Speciality Chemical Building Block for Liquid CrystalsLeading LCD and display material producers source this aniline derivative as a critical intermediate for tailored aromatic core structures within liquid-crystalline molecules. The precise substitution pattern supports synthesis of LC compounds with optimized clearing points and optical anisotropy, necessary for cutting-edge display technology manufacturing. Industry compliance standards
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Every batch of 2,4,5-Trimethylaniline we produce starts as a story on the plant floor. Years spent developing our processes taught us that subtle changes in synthesis create real differences, especially with aromatic amines. Over the years, we met hundreds of technical teams, from dye formulators seeking sharper pigments to electronic material producers needing higher-purity intermediates. It became clear that, though 2,4,5-Trimethylaniline shares some chemistry with its relatives, its specific arrangement of methyl groups and amine on the benzene ring gives it a distinct personality in any application.
We synthesize 2,4,5-Trimethylaniline using established catalytic alkylation methods, tuning reaction conditions for purity and minimizing by-products. This produces a crystalline material, often ranging from colorless to slightly yellow at room temperature, that behaves predictably across production lots. The methyl groups at positions 2, 4, and 5 of the aromatic ring influence both reactivity and solubility. That structure impacts every downstream use, whether someone is building a dye molecule or engineering polymers for emerging electronics projects.
Through emphasis on control — not just of temperature and pressure, but also purification methods — we minimize contamination from isomers or overmethylated analogs. Consistency remains critical at scale. Tighter controls mean researchers and process chemists receive a product that won’t force unnecessary troubleshooting down the line. In the past, we confronted batches that drifted out of specification; that led to insights about the interaction of iron catalysts with methyl substituents, which in turn led to small but meaningful process adjustments.
From our vantage point as industrial producers, the value of 2,4,5-Trimethylaniline goes beyond just commodity pricing. The molecule anchors itself as an intermediate — what some downstream users see as a clean slate for further synthesis. In dye manufacturing, its substitution pattern allows color chemists to access brilliant reds, violets, and blues with reliable fastness. Every year, we supply material to several companies focused on textile and ink pigment innovation. Our conversations with their scientists highlight how even slight variations in side-chain position can skew tone, stability, and regulatory acceptance.
For certain agrochemical producers, our 2,4,5-Trimethylaniline opens up synthetic options around selective herbicide design. We have seen success stories where derivative molecules based on this amine offered new selectivity or lower toxicity profiles compared with older analogs. In some cases, researchers replaced standard anilines with our trimethyl variant and achieved better field efficacy alongside improved environmental behavior. Our technical staff often collaborates directly with customers, sharing process insights, impurity patterns, and real-world performance feedback.
After years of making and troubleshooting aromatic amine syntheses, we can say that every small change on the benzene ring sets up a cascade of practical differences. Our 2,4,5-Trimethylaniline, by virtue of its methyl arrangement, shows different reactivity than classic aniline, 2,4-dimethylaniline, or even meta-substituted versions. In the workshop and the lab, what that means is less oxidative instability compared to products with free para sites. The amine group remains reactive enough for coupling reactions while the shielding effect of the three methyl groups dampens certain by-product routes.
Customers occasionally bring us concerns after working with other aniline derivatives — variable odor, persistent color or polymerization on storage, unpredictable reaction yields. From direct feedback and in-house reactivity studies, we learned that 2,4,5-Trimethylaniline resists certain oxidation and polymerization pathways, reducing resin formation in process streams. This doesn’t just cut cleaning cycles for industrial users; it improves yield predictability for those making specialty chemicals or organic intermediates.
Another difference shows up in solubility. Traditional aniline and less-methylated variants follow classic aromatic amine solubility in water and organics. Our trimethyl version dissolves more readily in organic solvents and demonstrates lower volatility. In a sector where product loss through evaporation or migration spells cost and compliance headaches, physical properties shaped by substitution really matter. Our QC labs track these numbers with each lot, and customers report back data once they substitute our product into their downstream syntheses.
Some users ask us about specifications and model numbers, seeking confidence in repeating their own production. The 2,4,5-Trimethylaniline coming off our lines is routinely analyzed for purity through GC and NMR, with assay values approaching the upper nineties percent. We focus on minimizing trace isomers, halogenated impurities, and heavy metals. The visible color, flowability, and packing density all get checked because we know factory floors suffer from sticky or lumpy intermediates. Through recent process upgrades, we managed to reduce residual iron and oxidized colored impurities that used to cause downstream pigment issues.
Years of chasing increasingly stringent purity targets taught us that end-use requirements often drive specification development. Some users, especially in electronics and optoelectronics, expect trace metals below certain levels. For them, each batch gets additional scrutiny through ICP-MS, and we track lots closely. In pigment and agrochemical synthesis, we focus more on color and organic impurity fingerprints, recognizing that even parts-per-thousand contaminants can alter product performance at scale. Misreading those signals in the past meant rework, shipments returned, and lost trust; after enough of those experiences, you start thinking about the product, not just as a formula, but as a series of outcomes for your partners.
Most of the 2,4,5-Trimethylaniline we ship heads toward dye and pigment intermediates. Color chemists care about fastness, hue, and shade strength. The methyl orientation on the ring gives their structures additional stability against light and environmental breakdown. Years ago, a pigment producer shared their struggle with color fade in challenging outdoor applications. A shift to new derivatives built from our product improved both color stability and reduced migration, building their confidence to expand into new markets.
Other users put this amine at the starting line of agrochemicals and pharmaceutical intermediates. Its unique substitution allows for regioselective coupling, giving access to new active structures. Our engineers spent months working alongside fine chemical plants to tweak process conditions for higher yields and smoother separations. In each case, small details — reactivity, side product profiles, thermal stability — translated to lower waste, better margins, and fewer headaches on the line. While some rivals hedge with mixed or generic lots from global sources, we rely on control and process troubleshooting experience to keep material on spec and performing.
Reseachers in the electronic chemicals world, always chasing new organic semiconductors, also turn to our 2,4,5-Trimethylaniline for its clean track record in synthesis. The electron-donating methyls shift reactivity to their advantage, enabling novel architectures. Collaborative projects with university and private labs have highlighted how small molecule intermediates, with tight control over ring substitution, allow for tunable electron transport or dye-sensitizer properties in experimental devices. Direct feedback from these users — purity, stability, sample-size deliveries — have fed back into our own analytical protocols and handling practices.
Despite years operating these lines, each cycle brings fresh lessons. Handling aromatic amines raises perennial challenges, especially regarding odor, occupational exposure, and safe containment. Our teams face ongoing pressure to manage these risks, using better closed-loop systems, enhanced ventilation, and rigorous safety training. Not every attempt succeeded at first; we saw batch losses from oxygen breakthrough, leaks that forced shutdowns, and off-spec shipments that bruised relationships. We learned from those failures, investing in new scrubber systems and better monitoring technology, and reinforced that a production plant is only as reliable as its weakest control point.
In broader terms, legislative and regulatory pressure around aromatic amines isn’t letting up. Recent years brought sharper scrutiny of amine content in textile dyes and consumer goods, with lowering tolerance for trace contaminants or allergens. We stay in conversation with compliance departments at customer sites. We also allocate resources to analytical upgrades and work with consultants to track regulatory changes from North America to Europe and East Asia. As manufacturer, we view every new standard not as a hurdle but as a design target for our plant, feeding back into everything from procurement to batch release criteria.
No matter how tight the specification, the only real proof is on our user’s line. Over the years, true solutions come less from paperwork and more from joint troubleshooting. One international pigment maker struggled with unpredictable off-colors in a new grade. Lab comparisons traced the cause to trace para-substituted isomers in their previous raw material, nearly invisible in routine testing but amplified in the finished product. Through trial runs and sharing of both process data and impurity fingerprints, we demonstrated a consistent, clean supply of 2,4,5-Trimethylaniline that corrected their problem. That sort of hands-on challenge, connecting analytical work with practical use, shaped much of our product development focus.
Certainly, as competition grows and customers evaluate global sources with varying standards, it becomes tempting to cut corners or to generalize product performance. We resist that push. Our own experience brings the lesson home: every shortcut risks far greater downstream trouble, whether it manifests as production downtime, customer complaints, or environmental headaches. These are not isolated risks but the normal reality in manufacturing specialty intermediates. In accepting that, we double down on raw material control, incremental process improvements, and open exchange with the laboratories and production teams who actually turn our product into final goods.
Many of our product improvements and handling practices didn’t come from corporate mandates or external consultants. They started from listening — often uncomfortably — to user complaints, analytical surprises, and batch-to-batch data. Over the years, we learned that feedback loops, especially real-world complaints from users, drive more sustainable improvement than any marketing initiative could. Not everything shows up on a spec sheet. Color formers in pigment production exposed handling quirks, including reactivity with certain solvents and the potential for trace colored by-products that standard QC screening can sometimes overlook.
Product consistency takes ongoing investment, but in return it builds relationships. Repeat customers — both large and small — expect us to hit agreed targets but also to stay available for technical consultation as their own needs change. We take that obligation seriously, treating every batch of 2,4,5-Trimethylaniline as both a standalone material and a foundation for many other value-added products.
Pressure to improve the sustainability of our manufacturing stream grows each year. We engineer our production lines for low waste generation, focusing on solvent recycling and energy efficiency. In the chemical sector, waste minimization and cleaner effluent directly affect operating costs and regulatory compliance. Investment in better catalyst recovery, closed-loop solvent systems, and on-site analytical technology started as necessity but became habit. That approach influences not only the batch yield but the environmental footprint of every kilogram we ship.
We also review every new technical paper, regulatory bulletin, and supplier innovation for its impact on our product and our plant. Some changes roll out fast, such as improved residue capture or automation, while others require months of validation and re-certification. Either way, our customers expect us to navigate these shifts smoothly, providing not just continuity of supply but shared confidence that the product will perform the same way, each time, in their own application.
Standing behind every kilogram of 2,4,5-Trimethylaniline, we emphasize technical support and ongoing communication more than ever. Manufacturing specialty chemicals at scale, especially those with niche but demanding applications, means keeping a steady hand on process discipline and quality feedback. The compound’s particular structure, its application focus, and the lessons from decades of batch manufacturing all guide our approach.
As regulatory expectations evolve and downstream chemical innovation accelerates, we keep our focus practical — tracking performance, collaborating on troubleshooting, and strengthening supply relationships. Just as each methyl group on the ring guides this amine’s behavior in synthesis, we let daily direct experience shape both our process and our commitment to partners. Out of that, we build reliability and the shared confidence that lets our customers take their own next step — whether that’s in color chemistry, agrochemical design, or materials innovation.