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2-Amino-N-Ethylbenzenesulfonanilide

    • Product Name 2-Amino-N-Ethylbenzenesulfonanilide
    • Alias N-Ethylmetanil Yellow
    • Einecs 249-484-2
    • 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

    311405

    Chemical Name 2-Amino-N-Ethylbenzenesulfonanilide
    Molecular Formula C14H16N2O2S
    Molecular Weight 276.36 g/mol
    Cas Number 88-22-2
    Appearance Light brown to beige powder
    Melting Point 129-132 °C
    Solubility Slightly soluble in water, soluble in organic solvents
    Odor Odorless
    Purity Typically >98%
    Storage Temperature Store at room temperature, keep container tightly closed
    Applications Used as an intermediate in organic synthesis and dye manufacture
    Synonyms N-Ethyl-2-aminophenylbenzenesulfonamide
    Stability Stable under normal conditions

    As an accredited 2-Amino-N-Ethylbenzenesulfonanilide 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 100g amber glass bottle with a sealed cap, labeled clearly with hazard warnings and lot information.
    Shipping 2-Amino-N-Ethylbenzenesulfonanilide is shipped in tightly sealed containers to prevent contamination and moisture ingress. It should be packaged according to chemical safety regulations, labeled clearly, and cushioned against impact. The shipment must be kept away from incompatible substances and stored in a cool, dry place during transit according to relevant transport regulations.
    Storage 2-Amino-N-Ethylbenzenesulfonanilide should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area away from sources of ignition and incompatible substances such as strong oxidizing agents. Protect it from moisture and direct sunlight. Ensure that the storage area is equipped with appropriate spill containment and that adequate labeling and safety measures are maintained at all times.
    Application of 2-Amino-N-Ethylbenzenesulfonanilide

    Applications of 2-Amino-N-Ethylbenzenesulfonanilide in Industrial Manufacturing

    2-Amino-N-ethylbenzenesulfonanilide serves as a critical intermediate across several mature industrial sectors, supporting high-precision synthesis and reliable performance requirements. Below we present verified, well-established application scenarios, each characterized by industry-accepted specifications, defined formulation roles, precise process location, and typical end product categories.

    1. Organic Pigment Production for Plastics and Coatings

    Industrial pigment manufacturers use this compound as a diazo component in the synthesis of solvent-stable yellow and orange pigments, especially disazo pigments for polymer coloring. It supports chroma consistency during high-shear aqueous wet-milling and ensures lightfastness in finished plastics. Producers rely on this intermediate to achieve tight color index targets required by modern automotive, high-impact PVC, and polyethylene masterbatches.

    Industry compliance standards

    • ISO 9001:2015 (Quality Management Systems for pigment plants)
    • EN 71-3 (Migration of certain elements for toys)
    • REACH Annex XVII/EC 1907/2006 (Restrictions specific to azo pigments)
    • ASTM D4963 (Standard Test Method for Pigment Content in Polyolefins)

    Typical usage ratio

    • 0.3%–2.5% by weight in final pigment synthesis, adjusted for hue strength and polymer compatibility; higher levels for deep chroma masterbatches.

    Downstream process integration

    • Introduced at the diazotization and coupling step; reacts with acetoacetarylide or similar coupling agents to form target pigment backbone.

    Final product types

    • Automotive interior and exterior plastic parts
    • Industrial powder coatings
    • PVC wire and cable sheathing
    • PE, PP, ABS masterbatches for film and injection molding

    2. Textile Dye Intermediate for Disperse and Acid Dyes

    Textile dye synthesis employs this sulfonanilide as a key building block when manufacturing certain disperse and acid dyes for polyester, nylon, and acetate fibers. Its use helps drive batch-to-batch color reproducibility in high-speed continuous dyeing and piece-dyeing lines, while also contributing to wash fastness and resistance to acid hydrolysis in consumer end-uses.

    Industry compliance standards

    • OEKO-TEX STANDARD 100 (Restriction of azo colorants and amines)
    • ZDHC MRSL (Zero Discharge of Hazardous Chemicals Manufacturing Restricted Substances List)
    • GB 18401 (National General Safety Technical Code for Textile Products)
    • ISO 105-C06 (Textiles—Tests for color fastness—Part C06: Color fastness to domestic and commercial laundering)

    Typical usage ratio

    • 5%–12% of the total dye target molecule mass, depending on targeted hue, brightness, and dye structure; adjusted for polyester versus nylon blends.

    Downstream process integration

    • Undergoes diazotization to couple with aromatic amines or naphthols during laboratory and bulk synthesis of disperse or acid dye molecules.

    Final product types

    • High-temperature disperse dyes for polyester fiber
    • Exhaust and continuous acid dyes for nylon hosiery
    • Pre-matched dye blends for yarn and piece dyeing
    • Mass-coloration dyes for microdenier polyester fabric

    3. Colorant Component for Specialty Printer Ink Formulation

    In high-performance ink production, especially for thermal transfer ribbons and polyester film-backed labels, this aminosulfonanilide forms azo colorants with the required light stability and solvent resistance. Ink manufacturers incorporate it for its compatibility with both solvent-based and water-based resin systems, supporting ink’s smudge and migration resistance on synthetic and paper substrates.

    Industry compliance standards

    • ISO 2846-1 (Graphic technology—Color and transparency of ink sets)
    • EN 71-3 (Applicable for toy packaging inks)
    • GMP Regulation (EC) No 2023/2006 for food packaging ink manufacture
    • ASTM F2252 (Standard Practice for Evaluating Ink or Coating Adhesion to Substrates)

    Typical usage ratio

    • 1.2%–6% in finished colorant premixes, typically varied by ink type (thermal transfer, solvent, UV-cured); adjusted by jetting performance and color strength requirements.

    Downstream process integration

    • Participates in pre-azo coupling stages before resin dispersion; dispersions then milled into toner or combined with acrylic polymer emulsions for final ink concentrate.

    Final product types

    • Solvent-based gravure and flexographic inks for flexible packaging
    • Thermal transfer ribbon inks for barcode and data printing
    • Digital inkjet inks for wide-format commercial printers
    • UV-cured label inks for shrink sleeve and film applications

    4. Intermediate for Electronic-Grade Color Resist Materials

    Certain color resist and filter material manufacturers for LCD, OLED, and sensor devices use this raw material to build azo pigment precursors, targeting high thermal and photostability after inkjet or spin-coating processing. Its chemistry is valued in formulating precisely banded color filters and maintaining purity to minimize mobility of ionic contaminants in cleanroom environments.

    Industry compliance standards

    • IEC 61249-2-21 (Halogen-free electronic base materials)
    • JEDEC JESD625B (Requirements for handling electrostatic-discharge-sensitive materials)
    • RoHS Directive 2011/65/EU (Restriction of hazardous substances in electronics)
    • ISO 14001 (Environmental Management in electronics manufacturing)

    Typical usage ratio

    • 0.2%–1.1% in pigment synthesis for color resist production, controlled to match optical density and purity requirements for backplane exposure processes.

    Downstream process integration

    • Added as a critical diazo intermediate during small-molecule colorant synthesis, followed by ultrafiltration and surface purity testing before blending into resist resin systems.

    Final product types

    • Color filter resists for TFT-LCD and OLED displays
    • Photolithography resists for CMOS and CCD image sensors
    • Optical filter layers in advanced sensor modules
    • Functional micro-patterned colorant films for electronic touch panels
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    Certification & Compliance
    More Introduction

    2-Amino-N-Ethylbenzenesulfonanilide: Reliable Performance, Hands-On Experience

    Getting to Know 2-Amino-N-Ethylbenzenesulfonanilide

    Years in the plant have taught us that every molecule has its quirks. 2-Amino-N-Ethylbenzenesulfonanilide, known to many in dye and pigment synthesis, stands out for its consistent behavior in reactions where others stumble. Manufactured under strict control to maintain stable quality, this compound goes into products where uniform shade development and repeatable results are critical. Over time, plenty of chemists come to us needing something dependable for organic synthesis. They want to avoid unnecessary impurities that spoil batch after batch. We get it. Nobody likes surprises, especially during scale-up.

    Physical and Chemical Insights from the Shop Floor

    From the raw input to the last inspection, nothing beats seeing how a material behaves in the real world. 2-Amino-N-Ethylbenzenesulfonanilide typically presents itself as a powder, off-white to pale, without strong or lingering odor. Handling it day in and day out, we learned that moisture can be its enemy, so drum seals matter more than almost anything. That’s a tip not found on a data sheet. Our batches remain low in insolubles because we control temperatures and mixing protocols tightly. Customers told us time and time again: their reactions stay on track as long as they’re not cleaning up unexpected residues—a claim not every competitor’s material can match.

    Why Purity Reduces Downtime

    Quality isn't something you achieve once—every reactor charge proves whether diligence pays off. Our standard product model for 2-Amino-N-Ethylbenzenesulfonanilide typically offers a purity above 99% by HPLC, checked lot by lot. A cleaner input avoids side products in downstream chemistry. Anyone who has tried to clean stubborn tar from a vessel after a questionable batch will appreciate that. We keep our sulfate, iron, and heavy-metal counts low, reflecting not just regulatory needs but also what actually helps keep a process efficient. When you don’t need to run extra purification steps, you save solvent, time, and wear on equipment. Pulling production numbers up means avoiding rework, and it all starts at the raw materials receiving door.

    Distinctive Edge Over Other Sulfonanilides

    Comparison in the lab often reveals differences you cannot see just by scanning a list of functional groups. The ethyl substitution in our product changes its solubility profile compared to standard benzenesulfonanilide derivatives. This may not seem significant until you’re dissolving it in a process tank or tailoring dye hues for textiles. Take, for example, our experience in azo-dye manufacturing. The N-ethyl group can enhance fastness and improve pigment adhesion on certain fibers, unlike its non-alkylated siblings. Some customers depend on this advantage to meet specifications in automotive coatings and specialty inks.

    Over years of scaling up and supporting R&D, we’ve come to value the repeatability of this profile. Small changes, such as the addition of that ethyl group, often give synthetic chemists just enough latitude to get harder-to-achieve shades or physical properties. These insights cost us years of benchwork, not just a glance at a catalog. Our plant always monitors the consistency of substitution and final molecular structure—QC teams pay close attention so the final product doesn’t suffer from variable sources of raw materials. Many in the market treat such compounds as commodities. We believe in keeping the bar high.

    Real Use Cases: Color, Consistency, and Control

    On our side, the most common usage for 2-Amino-N-Ethylbenzenesulfonanilide lies in azo-dye intermediate synthesis. Dyes derived from our material tend to deliver brightness and color stability, even when the final application subjects them to heat or chemical exposure. Textile labs testing for washing and light fastness, or coatings businesses looking to stay within precise color tolerances, have sent us positive feedback. With some regularity, technical teams relay problems with similar substitutes: unexpected dulling, creeping impurities, or troublesome crystallization. We rarely see such callbacks because we have tuned our particle size and flow characteristics through practical feedback, not theory alone.

    Beyond colors, there’s always an eye on regulation. At every lot release, we confirm the batch complies with handling and environmental benchmarks. Past customers turned to us after failed compliance checks with unvetted materials, especially on halogen or trace metal content. Our in-house labs use calibrated methods to keep up with tighter export standards and customer audit trails, so buyers don’t hit snags at customs or during downstream formulation validation.

    Supporting Sustainable Manufacturing

    Waste minimization and sustainability get more attention these days, and for good reason. By controlling our process, and lowering the frequency of unwanted byproducts, there is less to dispose of and fewer adjustments needed down the line. Our solvent recovery step was inspired by real needs: safety, environmental regulatory pressure, but also economics. Clean, high-purity starting materials like 2-Amino-N-Ethylbenzenesulfonanilide reduce offcuts and lower energy costs in the reactors downstream. We make upgrades every year by listening to plant floor feedback, not just by checking boxes for certifications.

    Monitoring air and water outlets continuously, we see directly how compound consistency relates to operational safety. Personnel notice it when foul odors or sudden spikes in effluent signals happen from sub-par batches. These indicators led us to implement batch-level trackability and incremental improvements that show up in customer returns. Our team notices when off-spec material enters the supply chain, making us double-check procedures and reinforce lot segregation. Industry veterans have taught us: value comes from watching trends, not waiting for trouble.

    Troubleshooting and Solutions Learned From Production

    No process runs forever without hiccups. From decades of generating 2-Amino-N-Ethylbenzenesulfonanilide, we learned where the common trip points occur—agitation speed too high, temperature lag during amination, or incorrect neutralization causing salt formation. We keep field logs that pinpoint root cause, and retrain operators with every major incident. If material suddenly clumps or fails to dissolve as expected, any downstream batch can go off-plan fast.

    We treat open feedback as gold. Chemists working at the bench tell us about filtration problems and residue buildup; process engineers check analysis data for unusual lots; and, plant hands report on dusting during bagging. Only by piecing this together do we keep improving particle size distribution and ensure consistent performance in mixing tanks. Regular open-door cross audits, supported by our QC data, help us build trust—not just in our lab, but in the factories where our product ends up.

    Health, Safety, and Steady Handling in the Real World

    While data sheets spell out standard handling, the lived reality in a busy manufacturing bay always throws in extra challenges. Over the years, minor tweaks to storage have cut down on caking, and investing in better dust extraction has kept exposure low for operators. We learned to keep an eye on shipment temperature, especially in transit to warmer climates, to avoid clumping or moisture ingress. Walking the floor with safety teams gives us insights that help redesign container sizes and recommend best flow aids in larger silos.

    Regular on-site drills and audits mean that when an accident does occur, the team responds fast—containment, cleanup, and review happen quickly. Reports from field use help us recommend good practices to our customers, passing on details like glove selection, fume extraction, or code-specific disposal options for spent material. We also support larger users with batch data, traceability reports, and, if needed, root cause analyses for any incidents tied to our supply. Production veterans often say, “Good material doesn’t stay good if it’s poorly handled,” a piece of wisdom we share often.

    Supporting Technical Teams Beyond Sale

    Supplying 2-Amino-N-Ethylbenzenesulfonanilide is more than sending off a shipment and closing a file. Technical support doesn’t end after purchase. Our team fields calls from production chemists dealing with everything from troubleshooting strange crystallization during scale-up to unexpected color drifts in their finished product. Because we run similar equipment ourselves, we know that advice needs to be concrete and fast—sometimes even walking through their procedures in parallel with our plant operators.

    We offer application-specific tips based on material grade: some textile finishers want tighter controls on particle size, others need just-in-time deliveries to avoid opening all their stock at once and risking spoilage. By drawing on batch records, retention samples, and treatment logs, we get both sides talking and working towards practical answers, not theoretical debates. This attitude keeps the number of supply interruptions low: logistic managers can recall years without a single return shipment due to spec failure—those are the real marks of quality that buyers appreciate.

    Changing Demands: Keeping Up with Industry Shifts

    Demand for 2-Amino-N-Ethylbenzenesulfonanilide isn’t static. Textile coloration and high-performance plastics move in cycles, and so do their requirements. Customer R&D teams often explore new uses—antimicrobial finishes, niche electronic applications, or pigment dispersion for automotive detailing. By keeping a dialogue going, we tweak synthesis strategies, accommodate custom blending requests, and share knowledge built from running thousands of batches.

    Last year, a surge in electric vehicle interior coatings called for dye intermediates with improved thermal stability. Our team adjusted process parameters to meet this demand, developed a slightly altered particle size to suit a new dispersing aid, and validated the material with two pilot runs. Feedback fed straight back into how we manage regular batches, improving even the conventional dye-grade lots. By turning customer challenges into development triggers, we avoid supply mismatches no matter how the market shifts.

    Local and Global Reliability

    Whether customers buy a few hundred kilos or several tons, their bottom line depends on getting the same outcome every time. We ship worldwide, so we test for variability in both logistics and warehousing. Hot summers in the Middle East, cold winters in the north, and rainy shipping seasons in Southeast Asia all challenge bulk stability differently. Real-world learning led us to develop moisture-resistant liners and suggest rotation schedules for storage, so remote clients don’t see performance dips from accident or neglect.

    We commit to transparency: our batch records and analytical certificates are open to customer scrutiny. Auditors, regulators, and partner R&D teams have walked our floors, checked our logs, and confirmed that repeatability comes from process discipline and investment in routine testing. Each ton out the door isn’t just a sale—it’s a reputation on the line, and we protect that with vigilance and hard-won manufacturing experience.

    Comparing to Alternatives from Direct Practice

    Plenty of buyers compare our 2-Amino-N-Ethylbenzenesulfonanilide to lower-cost or differently substituted sulfonanilides. Some of these rivals come from brokers or resellers who cannot answer for batch-level problems or gaps in traceability. From our vantage as actual manufacturers, the biggest differences show up in application feedback: less predictable particles, off-odors in finished applications, and inconsistent reactivity that complicates color matching or feedstock blending.

    We receive returned samples every season and perform root-cause analysis for buyers curious about underperformance in their own lines. Sometimes it's residual organic impurities, sometimes trace iron, and occasionally it’s simply the wrong polymorph. These insights feed back into our own process controls. Price pressure tempts companies to chase low-tier alternatives, but the cost in downtime, troubleshooting, or regulatory fines often outweighs any savings per kilo. This is why many customers who tried substitutes return for reliably specified material, especially in mission-critical batches or during final product qualification.

    Future Direction: Partnerships, Progress, and Shared Learning

    As regulatory standards increase and customer application fields widen, making and supplying 2-Amino-N-Ethylbenzenesulfonanilide means being adaptable. Our plant pursues continuous improvement not by adopting every trend, but by sharing knowledge with customers and innovation partners. New uses—whether in advanced composites, protective coatings, or pharmaceutical intermediates—inspire us to refine our process, check raw material sourcing more stringently, and pilot novel batch runs when a client’s R&D reaches beyond current boundaries.

    Plant upgrades, staff training, and rigorous auditing make reliable batches that widen the circle of trusted partners. Conversations with procurement, feedback loops with application scientists, and plant-floor collaboration all matter in keeping every lot up to task. We run trials, document changes, and back every shipment with personal accountability that only a hands-on manufacturer can supply. Over the coming years, closer ties between production sites and user teams will ensure 2-Amino-N-Ethylbenzenesulfonanilide keeps pace with both expected and emerging technical demands, delivering value worldwide by turning long-term know-how into everyday confidence.