Anhui Liwei Chemical Co., Limited
Products

6-Acetamido-2-Nitrophenol-4-Sulfonic Acid


    • Product Name 6-Acetamido-2-Nitrophenol-4-Sulfonic Acid
    • Alias 6-ANSA
    • Einecs 242-652-9
    • 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

    537660

    Product Name 6-Acetamido-2-Nitrophenol-4-Sulfonic Acid
    Chemical Formula C8H8N2O6S
    Molecular Weight 260.23 g/mol
    Appearance Yellow to orange powder
    Melting Point Decomposes above 250°C
    Solubility In Water Soluble
    Cas Number 96-67-3
    Purity Typically ≥98%
    Storage Conditions Store at 2-8°C, keep tightly closed
    Synonyms Acetamido nitrophenol sulfonic acid
    Ph Acidic, ~2-3 (1% aqueous solution)

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

    Packing & Storage
    Packing Amber glass bottle, 100 grams, with tamper-evident cap, chemical label displaying hazard symbols, batch number, and handling instructions.
    Shipping 6-Acetamido-2-Nitrophenol-4-Sulfonic Acid ships in tightly sealed containers to prevent moisture and contamination. It is classified as a chemical product and is handled as non-hazardous under normal conditions. Proper labeling, cushioning, and documentation are used to ensure safe transit, compliance with regulations, and easy identification upon delivery.
    Storage 6-Acetamido-2-Nitrophenol-4-Sulfonic Acid should be stored in a tightly sealed container, away from light, moisture, and incompatible materials such as strong oxidizers and bases. Keep it in a cool, dry, well-ventilated area, ideally in a chemical storage cabinet. Properly label the container, and ensure use of appropriate personal protective equipment when handling the substance.
    Free Quote

    Competitive 6-Acetamido-2-Nitrophenol-4-Sulfonic Acid prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615380400285 or mail to sales2@liwei-chem.com.

    We will respond to you as soon as possible.

    Tel: +8615380400285

    Email: sales2@liwei-chem.com

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    Certification & Compliance
    More Introduction

    Introducing 6-Acetamido-2-Nitrophenol-4-Sulfonic Acid: A Reliable Choice in Specialty Chemicals

    From the daily effort of the production line to the endless search for improved methods in chemical synthesis, our work with 6-Acetamido-2-Nitrophenol-4-Sulfonic Acid stands as a testament to both our technical know-how and commitment to performance. This compound, which our team refers to by its structural designation and not a trade name, reveals its strengths through practical application and process consistency, not fancy marketing. Over years of synthesis, refinement, and quality control, the feedback from both our technicians and long-term partners points to one thing: steady reliability.

    Consistent Chemical Output, Batch After Batch

    On the floor where glassware and reactors fill the space, 6-Acetamido-2-Nitrophenol-4-Sulfonic Acid proves both its stability and predictability. We manufacture this compound to strict internal standards, paying close attention to purity, uniform particle distribution, and minimal trace impurities. Quality checks go beyond spot tests. Staff test every produced batch, tracking colorimetric response, melting point, and visible solubility to catch any slight deviations. Years of hands-on adjustments and data collection allow us to establish narrow tolerance ranges for nitro, acetamido, and sulfonic group content.

    By focusing on consistent crystallization conditions and exact reagent ratios, our technicians reduce the risk of unwanted side-products such as phenolic tars or incomplete acetamidation. This focused manufacturing approach minimizes downstream purification burdens for our customers. Lab notebooks full of spectra and titration logs can trace back each batch, building the kind of evidence-based trust that isn’t shown by a certificate alone but by the way the product behaves during real-world synthesis steps.

    Performance in Application: Where Our Experience Counts

    Over conversations with formulators, R&D chemists, and process engineers, the compound repeatedly comes up as a go-to intermediate for the synthesis of complex organic molecules. Its robust nitro- and sulfonic functionalities open doors for multiple transformation routes. In the dye and pigment sector, research staff find this acid forms a reliable anchor for further electrophilic substitutions. Many modern colorants rely on this backbone for both shade purity and resistance to light fading.

    In the pharmaceutical research realm, our feedback loop with clients has helped refine the product’s specification to meet the unique challenges seen in pilot to full-scale manufacture. Some syntheses demand heightened sulfonic group integrity; others require low levels of residual starting phenols. Every run, plant staff reference their process flow charts and in-process tests, using our compound as a trusted building block. End users have reported that its reliable reactivity under controlled pH and temperature settings simplifies both classical coupling reactions and specialized aromatic modifications.

    Typical selectivity challenges—such as avoiding unwanted ortho substitution—are reduced when process engineers don’t have to factor in material variability. Our team’s commitment to reducing sodium and sulfate contaminants has shown direct benefits in several customers’ process yields and downstream purification steps, turning a routine intermediate into a foundational material for many labs and plants. Some have achieved higher conversion in azo coupling syntheses thanks to the high sulfonic acid functionality and consistent purity profile.

    Product Model and Specifications: Building Trust With Measured Data

    We put a lot of work into recording every analytical result, all the way from HPLC and LCMS scans to the simplest melting point checks. Most batches score above 99% on targeted purity scans, with specific attention to residual inorganic salts and potential isomeric byproducts. Each kilogram produced is traceable by time, measured by in-process QA, and signed off before shipment. Whether handled in our own quality control room or independently tested by clients, the numbers repeatedly tell the story. For instance, the sharp melting profile and clear color in water solution have become informal quality hallmarks recognized by recurring buyers.

    Particle consistency gets just as much attention. We keep granulation tight to ensure even reactivity—something that’s not just a reporting point but a practical benefit during scale-up. Users avoid the risk of undissolved material gumming up their equipment or interference in reaction efficiency, particularly when working with automated dispensing systems or tight batch schedules. By taking extra time during crystallization and drying, our staff help end users save time and effort during their own processing, cutting down on filtration or post-processing headaches.

    Every lot carries a complete chromatographic profile, with full documentation open for client review. Working on the plant floor, we know that surprises in the drum or sack aren’t just minor inconveniences. They mean delays, rework, even missed delivery deadlines. Through years of working with both small-scale researchers and large-volume production chemists, those moments of smooth product reception—where the material simply performs as intended—are the real test for any specification.

    How 6-Acetamido-2-Nitrophenol-4-Sulfonic Acid Differs From Similar Products

    Our experience with comparable phenolic intermediates, such as 2-nitrophenol sulfonic acids without acetamido substitution, highlights just what our product brings to reaction ease and reliability. The acetamido group offers increased versatility during amide bond formation and aromatic substitution steps. Bench chemists note smoother condensation steps, higher selectivity, and less byproduct formation, especially in multistep sequences. In applications where deprotection or further functionalization is needed, this product’s clean acetamido signature allows for precise downstream transformations.

    While competitors may focus on basic structural analogues, extended shelf life and chemical stability is what most R&D teams demand. Other intermediates lacking the robust acetamido and sulfonic scaffolding tend to degrade quicker or react unpredictably under storage or elevated temperatures. Customers have reported material compaction, caking, or even visible degradation in compounds manufactured by less rigorous processes. Over the years, we’ve observed that our tighter control over drying and packaging keeps the material free-flowing and stable, even after months in storage, reducing both waste and uncertainty in the end user’s operation.

    Technical support feedback lines back this up; downstream yield loss due to oxidized or decomposed stock remains rare with our material. Several larger customers running continuous processes have flagged our product’s reliable flow and stability as a strong point compared to prior suppliers.

    Usage Scenarios in the Lab and Production

    Organic chemists rely on 6-Acetamido-2-Nitrophenol-4-Sulfonic Acid as a coupling partner, making complex aromatic frameworks feasible in fewer steps. Our team’s hands-on surveys confirm that both research and scale production crews report high reactivity with minimal side-product formation. In dye manufacturing, the compound supports development of vivid, long-lasting shades. Textile labs testing for wash-fastness repeatedly note improved color retention when starting from our material compared to more variable competitors.

    The performance edge extends into pharmaceutical pipeline projects. During our regular visits and troubleshooting sessions, process chemists tell us about the direct impact of predictable acid group functionality on their synthetic efficiency. A popular route for specific aniline derivatives depends on the purity of the acetamido and nitro functionalities in this intermediate. Cleaner reactions mean less reliance on labor-intensive rework or extensive downstream purification, which saves both money and time—both budget and schedule mean everything in process chemistry.

    Some partners developing specialty dyes for scientific and medical imaging have moved their proprietary processes to rely specifically on our production, not because we offer just another batch, but because year after year, technician after technician, the material behaves the way the documentation says it will. Feedback cycles lead us to implement even tighter controls, not just to meet minimum standards, but to outperform typical industry ranges and anticipate future needs as customer projects grow in scale.

    Ongoing Challenges and Solutions In Manufacture

    While perfection remains elusive in any chemical production, continual improvement defines our approach. Scale-up presents its usual complications—variation in heat distribution, mixing effectiveness, and filtration rates. Our technicians regularly revisit protocols, examining the root of every deviation and working adjustments back into both procedure and staff training. A process audit last year, for example, led us to adopt improved stirring technologies and more responsive pH controls, which in turn narrowed interbatch purity variation.

    Raw material sourcing challenges — particularly around fluctuations in precursor purity — demand responsive procurement and robust contingency planning. We work with long-standing partners and review supplier data meticulously before every purchase, quickly rejecting raw stocks that show even slight off-target readings. Still, new suppliers or global supply shifts can sneak minor impurities into the chain, prompting mid-course corrections in reaction setup.

    Our chemists and production leads hold weekly review meetings, testing in parallel both outgoing product and incoming raw materials, recording even small drifts in melting point, IR signature, or solubility. By systematically analyzing failures alongside successes, we don’t just react to occasional issues, but develop resilient processes that become more reliable each quarter. For example, switching to a different grade of acetamide after discovering occluded solvent residues allowed us to keep batch quality high during a period of global volatility in minor chemicals.

    Environmental and safety regulations drive another layer of focus. Waste streams, solvent recovery, and rinsate management demand vigilant monitoring, especially in sulfonic acid chemistry. Our plant’s commitment to both worker safety and emission controls minimizes risk for both staff and downstream customers, who rely on us to supply materials certified for low contaminant levels.

    Long-Term Relationships and Field-Oriented Feedback

    Beyond the laboratory, many of our purchasing managers and technical advisors maintain working relationships with clients. We don’t just wait for complaints but actively solicit feedback. Plant visits, process walk-throughs, and troubleshooting sessions aren’t sales opportunities, they’re learning experiences. Some of our most meaningful process upgrades started as suggestions from clients after real-life setbacks or successes. An R&D team working on new azo dye variants once noted a recurring issue with trace sulfonic impurities. By revisiting and fine-tuning our resin filtration, we drove down residues and increased value for everyone involved.

    This dialogue closes the loop. It informs specification updates, guides resource allocation for R&D, and builds trust that survives both lean years and periods of industry growth. Over time, it’s not just the product, but the process and the people—chemists, operators, and customer engineers—who ensure that every drum, every bag, and every shipment reflects the best we’ve learned so far.

    Looking Ahead: Meeting Real-World Challenges With Real Solutions

    The specialty chemical world never stands still. Environmental directives, customer requirements, and the search for greener chemistry all leave their mark. We’re not just observers, but active participants in this ongoing transformation. Our recent push to reduce solvent consumption during sulfonation, for example, owes just as much to technician persistence as to top-down planning. By rethinking reaction cleanup and work-up, we’ve trimmed solvent use and simplified waste handling, cutting both costs and environmental impact.

    We’re witnessing growing interest in higher-purity intermediates for electronics and advanced pharmaceuticals. Responding to these calls, we invested in both analytical upgrades and physical plant modernization—better chromatography, more sensitive in-line sensors, and expanded capacity for advanced drying and packaging. Technicians and QA staff handle these instruments daily, turning data into actionable process insight. Mistakes and anomalies don’t just become numbers in a spreadsheet but signal moments of learning. Whether a client discovers a trace contaminant or flags a batch for unexpected granulation, we treat it as a trigger to improve, not just explain away.

    The drive to cut down on non-renewable inputs, improve worker safety, and assure both supply stability and transparency isn’t abstract—it’s the result of both policy demand and hands-on production experience. Our partnership with customers, suppliers, and regulatory advisors keeps us awake to challenges and open to new solutions, whether that means greater recycling of side streams, energy recovery, or safer process automation.

    Conclusion: Why 6-Acetamido-2-Nitrophenol-4-Sulfonic Acid Matters

    Through real-world testing, ongoing collaboration, and production grounded in solid data, 6-Acetamido-2-Nitrophenol-4-Sulfonic Acid has proven itself more than just another intermediate. For researchers, production chemists, and process engineers alike, it represents a solution to synthesis challenges, a platform for developing new molecules, and a point of practical connection between chemical manufacturing and applied science. Whether supporting the next wave of high-performance colorants or advancing pharmaceutical targets, our product serves as a reliable backbone, shaped and refined by the real hands that work with it every day.