Anhui Liwei Chemical Co., Limited
Products

4-Tert-Amyl-2-Amino-6-Nitrophenol


    • Product Name 4-Tert-Amyl-2-Amino-6-Nitrophenol
    • Alias 4-tert-amyl-2-amino-6-nitrophenol
    • Einecs 629-674-7
    • Mininmum Order 1 g
    • Factory Site Lingwu, Yinchuan, Ningxia, China
    • Price Inquiry sales2@liwei-chem.com
    • Manufacturer Anhui Liwei Chemical Co., Limited
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    125641

    Chemical Name 4-Tert-Amyl-2-Amino-6-Nitrophenol
    Molecular Formula C11H16N2O3
    Molecular Weight 224.26 g/mol
    Appearance Yellow to orange crystalline powder
    Melting Point Approx. 160-165°C
    Solubility Soluble in organic solvents, slightly soluble in water
    Cas Number 83074-00-6
    Boiling Point Decomposes before boiling
    Density Approx. 1.2 g/cm³
    Storage Conditions Store in a cool, dry, and well-ventilated area
    Synonyms 4-tert-Amyl-2-amino-6-nitrophenol, HC Yellow 4
    Application Used as a hair dye intermediate

    As an accredited 4-Tert-Amyl-2-Amino-6-Nitrophenol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Amber glass bottle containing 25 grams of 4-Tert-Amyl-2-Amino-6-Nitrophenol, labeled with hazard warnings and batch information.
    Shipping 4-Tert-Amyl-2-Amino-6-Nitrophenol should be shipped in tightly sealed containers, protected from light, moisture, and incompatible substances. It must comply with relevant regulations for hazardous chemicals, including proper labeling and documentation. Transport should be in accordance with the UN, IATA, and IMO guidelines to ensure safety during transit.
    Storage 4-Tert-Amyl-2-Amino-6-Nitrophenol should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area away from incompatible substances such as strong oxidizers and acids. Protect it from direct sunlight, moisture, and sources of ignition. Ensure proper chemical labeling and restrict access to trained personnel only. Store in accordance with all relevant local and governmental regulations.
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    Tel: +8615380400285

    Email: sales2@liwei-chem.com

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    Certification & Compliance
    More Introduction

    4-Tert-Amyl-2-Amino-6-Nitrophenol: Purpose-Built Performance from the Source

    A Closer Look at 4-Tert-Amyl-2-Amino-6-Nitrophenol

    Years of experience in chemical manufacturing have highlighted the significance of specialty intermediates like 4-Tert-Amyl-2-Amino-6-Nitrophenol, especially for demanding synthesis pathways in the pigment, dye, and pharmaceutical fields. We keep hearing requests for intermediates that solve very specific problems—things like thermal stability in dyes used for hair coloring, increased reactivity for faster throughput during pharmaceutical synthesis, or sharper color profiles in specialty coatings. Instead of reaching for the usual suspects, more and more teams ask for nitrogen-substituted phenols that steer away from mainstream aniline derivatives.

    Our 4-Tert-Amyl-2-Amino-6-Nitrophenol stands out in this space. It brings together a tert-amyl group at the 4-position—known for steric hindrance that influences both color persistence and chemical resistance—with an amino and a nitro substituent on the aromatic ring. This combination opens the door for chemists to work with a molecule that resists oxidative degradation and allows a straightforward downstream amide or azo coupling, depending on the application. The model we produce carries a typical purity over 99% (by HPLC), which means less time needs to be spent dealing with re-purification or side stream products in your process flow. Every batch at our plant gets checked with in-house NMR and GC–MS analysis, so you see the same performance profile with each shipment.

    Why Choose 4-Tert-Amyl Derivatives?

    Standard amino-nitrophenols often lose color or degrade under prolonged light or heat. Older variants see heavy use in semi-permanent dyes and in the synthesis of certain medical intermediates, but their lifespan falls short under repeated exposure to oxidizing agents or high temperatures. By placing a tert-amyl group at the 4-position, molecular stability increases. This isn’t theoretical: our customer trials show up to 60% longer pigment stability in formulated dyes versus those based on non-substituted ortho-aminophenol. In the early days, our technical team worked alongside formulation chemists at several hair dye companies who needed better fade resistance through repeated wash cycles. We reformulated with the 4-tert-amyl variant, and after multiple pilot plant runs, saw significantly reduced color loss even after long-term sunlight simulation.

    Yet stability isn’t the sole factor. Anyone who’s tried multi-step synthesis in specialty pharmaceuticals knows the pain of side-reactions linked to reactive ortho positions in common aminophenols. The tert-amyl substituent on our product shields the ring, cutting down on unwanted byproducts in C–N coupling reactions. From a manufacturer’s perspective, this means reduced waste and fewer purification steps downstream—which translates to better overall yield.

    Typical Use-Cases: From Pigments to APIs

    We started scaled production of 4-Tert-Amyl-2-Amino-6-Nitrophenol because requests came in from customers working on high-resistance pigment systems. Over time, its use extended beyond colorants. In advanced organic syntheses, manufacturers building up complex pharmaceutical scaffolds lean on our compound as a key step, where the electron-donating amino group and electron-withdrawing nitro group enable selective transformations. In direct experience, contract manufacturers producing color-fast hair dyes and high-stability UV absorbers now treat it as a go-to raw material. Not all customers who use the molecule share full details about their end use, but we've witnessed repeat demand from both global and specialty-sector formulators focused on performance and durability.

    On the scale of bench chemistry, we’ve spent years watching R&D teams chase yield and consistency, especially in projects requiring large quantities over an extended campaign. Some early adopters in our network replaced their bulk shipments of 2-amino-6-nitrophenol (without tert-amyl) with our specialized grade for pilot and commercial runs. They reported both improved output and less time troubleshooting batch variability—feedback that lines up with our internal QC stats.

    Production and Consistency You Can Measure

    Each molecule of 4-Tert-Amyl-2-Amino-6-Nitrophenol that leaves our site starts with tightly sourced phenolic precursors. As a direct manufacturer, we track every reaction stage. Our synthesis employs high-purity reagents and modern hydrogenation equipment. This means the nitro and amino substituents are introduced with precision, and the selective tert-amyl substitution step runs under conditions that maximize throughput while minimizing byproducts. After synthesis, all product lots undergo full HPLC, GC–MS, and melting point analysis before release. Consistency shows up batch after batch—not as a hopeful marketing claim but as a reliable outcome based on decades of chemical plant operation under modern QC standards.

    A good chunk of our customer base found us not because of price, but because of consistency problems with distributors or intermediary suppliers. Working with us, synthetic chemists receive certificates of analysis for every lot, reinforcing the traceability and reproducibility of their own processes. Every feedback cycle with clients—especially those encountering tough regulatory requirements—helps us further lock down process controls and traceability.

    Specifications, Not Placeholders

    Some chemical listings gloss over what makes a batch usable: purity definitions tend to mean little until tested in end-use applications. We define quality by the actual performance in real-world projects. The technical specs we adhere to reflect feedback from specialist clients and repeated process trials. For this product, our regular lot purity stands at 99% minimum (HPLC area percentage). Water content stays below 0.25% (Karl Fischer), and impurities across amines and dinitrophenol derivatives remain tightly limited. Customers running high-impact industrial syntheses trust these specs to avoid downstream troubleshooting.

    Handling and solubility matters as well. Our material arrives as a free-flowing solid, packaged in moisture-resistant packaging to ease storage concerns. By keeping particle size within a narrow band, dusting and handling losses are reduced in both small and large-scale production environments. Anyone who’s spent time managing cross-contamination risks in pigment or API intermediates can appreciate the attention to clean, controlled packaging and reliable particle characteristics.

    Comparing With Other Substituted Aminophenols

    The chemical world never lacks options—before settling on 4-Tert-Amyl-2-Amino-6-Nitrophenol, chemists compare multiple alternatives. Our production team has evaluated everything from basic 2-amino-6-nitrophenol and 4-tert-butyl-2-amino-6-nitrophenol to ortho- or para-substituted variants carrying other alkyl or aryl groups. Each brings different tradeoffs for strength, color fastness, solubility, and ease of coupling. Through both internal and external pilot runs, we’ve found that the tert-amyl group delivers superior steric protection—greater than the tert-butyl cousins—without sacrificing key reactivity or making the molecule too bulky for downstream chemistry.

    By controlling the position and type of each substituent, the molecule's reactivity is selectively dialed in. For example, we’ve handled direct head-to-head batch runs for customers switching from 4-tert-butyl to 4-tert-amyl derivatives. Their process results consistently showed less decomposition at elevated pH and greater compatibility during diazotization. Batch reproducibility improved accordingly.

    Supporting Large and Small-Scale Innovation

    As a manufacturing partner, the feedback loop with formulators and researchers never stops. One practical insight: scaling up chemistry with 4-Tert-Amyl-2-Amino-6-Nitrophenol shortens purification cycles. Purity runs high, so waste streams thin out, and the step-count toward final product cuts down. Our facility has handled multi-ton campaigns for established pigment producers, assisting with inline QC and troubleshooting, all while supporting kilo-scale runs for academic groups testing the next wave of dye molecules.

    By staying close to end-users—especially those pushing applications in new dye families or in the pharmaceutical sector—we've helped refine protocol tweaks and troubleshoot process challenges. For instance, a recent pilot client encountered issues with their previous supplier’s hydroscopic product. We reformulated our packaging to further reduce residual moisture and provided technical recommendations for bulk handling. Their line returned to full productivity without further slowdowns.

    Why Direct Manufacturing Matters

    There’s a temptation in many industries to treat chemicals as commodities—interchangeable, easily substituted, and purchased purely on price. This underestimates the risk that comes with inconsistent batches or supply chain lag. By controlling process from raw material intake to finished product release, we remove these variables. We build long-standing relationships by responding quickly to technical queries, adapting specifications based on customer feedback, and sharing in the responsibility for your process reliability.

    Our team includes chemists, engineers, and quality control professionals who carry decades of shop-floor and plant experience. We keep planning cycles nimble, so whether a client needs a large lot for a new pigment launch or smaller R&D samples tweaked for a pharmaceutical screen, the underlying attention to quality and repeatability doesn’t change. Knowing where your 4-Tert-Amyl-2-Amino-6-Nitrophenol comes from—and having access to the technical crew behind its manufacture—streamlines troubleshooting, supports compliance, and builds confidence in scale-up scenarios.

    Long-Term Value: Performance, Consistency, and Trust

    There’s a reason experienced formulators and process chemists stay loyal to specific chemical suppliers: trust grows with every successful project. Our journey with 4-Tert-Amyl-2-Amino-6-Nitrophenol shows that, when direct communication, technical transparency, and relentless emphasis on repeatability take priority, customers see measurable value on the production line.

    Many of our longest-standing partnerships began with a single project, usually driven by process challenges that generic substitutes could not solve. Something as simple as improved stability under UV or lower batch-to-batch variation can trigger a cascade of downstream improvements—increased sales, reduced scrap, and better compliance metrics.

    From a manufacturer’s seat, there’s satisfaction in knowing the material we produce doesn’t just fill a drum but solves real industry problems. Seeing our product anchor projects in specialty dyes, robust pigments, and next-generation pharmaceuticals has reaffirmed our belief in close-knit collaboration, rigorous process control, and detailed technical support.

    Supporting Your Next Project

    Whether you’re gearing up for a new dye product launch, troubleshooting synthesis steps in a pharmaceutical campaign, or searching for a reliable bulk source for a unique substituted aminophenol, our experience and technical resources stand behind every lot dispatched. We keep investing in our processes, in our analytical capabilities, and in the technical training of our staff so you see results not only on paper but in every step of your own workflow.

    Our priorities remain unwavering: deliver on customer requirements, stay accountable at every production stage, and use technical expertise to proactively solve problems before they land on your desk. That’s what sustainable manufacturing looks like, and why working directly with a dedicated producer brings clarity and reliability—batch after batch, year after year.

    Quality Today Builds the Future

    The role of 4-Tert-Amyl-2-Amino-6-Nitrophenol extends far beyond simple molecular function. It reflects the broader principles that guide our manufacturing strategy—delivering reliable performance, zeroing in on process optimization, and removing the roadblocks that slow progress in our industry.

    As your projects evolve and technical challenges arise, having a supply partner with hands-on know-how and a genuine commitment to straightforward quality makes all the difference. Our doors remain open to process discussions, collaborative troubleshooting, and meeting the custom requirements that make your next breakthrough possible.

    We don’t settle for the status quo, and neither do our partners. Let us help move your project further, using the reliability and performance of 4-Tert-Amyl-2-Amino-6-Nitrophenol as your foundation for progress.