Anhui Liwei Chemical Co., Limited
Products

2,6-Naphthoquinone


    • Product Name 2,6-Naphthoquinone
    • Alias Vitamin K3
    • Einecs 202-101-6
    • 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

    843670

    Chemicalname 2,6-Naphthoquinone
    Casnumber 524-42-5
    Molecularformula C10H6O2
    Molecularweight 158.16
    Appearance Yellow crystalline powder
    Meltingpoint 194-196°C
    Solubilityinwater Slightly soluble
    Density 1.39 g/cm3
    Pubchemcid 13256
    Smiles O=C1C=CC2=CC=CC=C2C1=O
    Inchi InChI=1S/C10H6O2/c11-9-5-1-3-7-6-2-4-8(12)10(7)9/h1-6H
    Ecnumber 208-349-2

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

    Packing & Storage
    Packing A 100g amber glass bottle with a tightly sealed cap, labeled "2,6-Naphthoquinone," including hazard symbols and handling instructions.
    Shipping 2,6-Naphthoquinone should be shipped in tightly sealed containers, protected from light, heat, and moisture. It must comply with local and international transport regulations for hazardous chemicals. Use appropriate labeling and cushioning to avoid breakage. Ensure that all safety data sheets (SDS) accompany the shipment for proper handling and emergency measures.
    Storage 2,6-Naphthoquinone should be stored in a cool, dry, well-ventilated area away from sources of ignition and incompatible materials such as strong oxidizers. Keep the container tightly closed and protected from light. Store in a chemical-resistant container, clearly labeled, and avoid exposure to moisture. Adhere to all safety regulations and consult the safety data sheet (SDS) for additional guidelines.
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    Competitive 2,6-Naphthoquinone 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

    2,6-Naphthoquinone: Consistent Quality from the Manufacturer's Viewpoint

    On the production floor, chemistry leaves little room for shortcuts. Turning raw naphthalene into 2,6-Naphthoquinone demands a precise approach, starting with high-purity solvents and exacting temperature controls. The product often reaches our clients as a fine yellow crystalline powder, with rigorous consistency that sets it apart. In years of manufacturing, keeping purity above 98% GC remains our standard, since any compromise spills over into the customer’s downstream yields and process reliability.

    Crafting Reliable 2,6-Naphthoquinone

    Most routes to 2,6-Naphthoquinone use controlled oxidation. We steer the process carefully, with a focus on controlling exothermic reactions to avoid decomposition or unwanted isomer formation. Being an industrial manufacturer, the facility relies on closed-system reactors, continuous purity checks, and traceable batch logs. Every kilo that leaves the plant reflects real hands-on quality control, not just a routine data entry.

    Clients across the dyes, agrochemical, and pharmaceuticals sectors return for our 2,6-Naphthoquinone because their synthetic pathways falter on inferior starting material. We noticed years ago that even minor traces of 2,3- or 1,4-naphthoquinone wreak havoc downstream, especially in fine pharmaceutical research or high-value pigment manufacturing. By running repeated crystallizations, we weed out such isomers, giving compounders and researchers a better shot at reliable reactions.

    Looking at the Physical and Chemical Details

    Working with this material reveals a melting point typically in the 198-202°C range. That number tells more than just whether it will survive transport in the summer—it’s a quick double-check for outright contamination. Properly purified 2,6-Naphthoquinone forms tight, needlelike crystals, with a distinct deep yellow shade. If customers see brown tints or clumped mass, they're right to worry; it almost always points to rushed drying or open-air exposure. We address this with vacuum-sealed packaging, lined drums, and lot tracking, something that only a production-line mindset fully appreciates.

    Applications: More Than Just Numbers

    Laboratory catalogs often list a dozen quinones, but not every one fits in synthesis or finished products so easily. 2,6-Naphthoquinone in particular holds a special place as a building block for more advanced molecules—chief among them, plant-protective agents and chemotherapeutic scaffolds. Downstream users often choose this isomer for its particular electronic and reactive properties. Several agricultural researchers rely on this compound when synthesizing novel fungicides; medicinal chemistry teams use it as a core intermediate in anti-tumor agent projects.

    In our own shipping logs, the bulk of demand arrives from countries with strong agrochemical sectors—Brazil, China, and parts of Europe. Many customers specify our material for pilot plant production before scaling new active ingredients. They cite the cleaner chromatograms, fewer unexpected byproducts during derivatization, and more repeatable results batch after batch.

    How 2,6-Naphthoquinone Stands Apart from Similar Compounds

    Some chemists ask about alternatives, like 1,4- or 2,3-naphthoquinone, assuming small molecular tweaks make little difference. That’s not the case. 1,4-naphthoquinone, though widely used, displays different redox properties and alters biological activity significantly. The position of the ketone groups in the 2,6-arrangement influences how the molecule interacts with nucleophiles, changes reaction conditions, or modulates toxicity in bioactive compounds. Our longtime partners in R&D stress their synthetic routes fail or drop yield sharply when trying to switch isomers, warning new buyers against substitutions.

    The 2,6-isomer also offers a cleaner UV spectrum and more predictable crystallization profile. In scale-up, these seemingly minor attributes become critical. Slow, controlled crystallization prevents occlusion of solvents or side-products, which in turn leads to better process safety and tighter analytical parameters. Direct experience informs these practices, beyond what any general datasheet could highlight.

    Safety, Handling, and Realistic Production Concerns

    Production on the ton scale brings handling hazards front and center: 2,6-Naphthoquinone is notably potent as an oxidizer and irritant. We invest in specialized PPE, negative-pressure setups, and strictly maintained exhaust scrubbers. Over the years, investing in robust process hazard analysis has cut minor incidents and kept workplace injuries at zero, a track record we’re proud to share with auditors and clients alike.

    After synthesis, storage remains a crucial step. Even low levels of moisture, heat, or sunlight degrade the compound—lessons learned from early shipments that arrived clumped or off-color overseas. Now, we follow closed handling, nitrogen blanketing, and robust quality audits before any container leaves the warehouse. These aren't abstract policies—they reflect dozens of real customer complaints, root cause investigations, and ongoing dialogue between our floor teams and end users.

    Working with Supply Chain Complexities

    Volatility in solvent pricing, tightening environmental regulations, and global transport bottlenecks have shaped how we build inventory. We keep buffer stocks of key raw materials and finished product, crucial for clients whose campaigns cannot pause over a missed shipment. Each year, evolving environmental standards require tighter controls on effluents and solvent recovery, impacting both cost and process design. Meeting REACH requirements or compliance checks by major multinationals means retaining robust documentation and years of analytical records.

    Maintaining high specs across changing raw material markets takes vigilance. Sometimes, naphthalene sourced from regional petrochemical plants shows subtle impurity drift, especially during supply crunches. Our in-house analytical lab screens every delivery—if a batch fails, we take the feedback seriously and halt production. Clients value this strict sourcing not because we promise perfection, but because we operate as partners, keeping their production schedules in mind.

    Feedback and Partnering with Industry

    Being a real producer involves more than shipping chemicals. Our technical support team fields questions on reaction troubleshooting, purification tips, and custom blend requests most weeks. Over time, we’ve adapted our product specs for customers running newer, continuous-flow reactors or taking their pilot batches directly to registration. These conversations help us refine batch sizes, create packaging suited for bench scientists as well as plant chemists, and catch possible cross-contaminants early—something faceless resellers rarely address.

    We listen when partners report oddities: a color shift, crystallization issue, or variation in melting range often signals a process tweak or raw supply hiccup. Direct manufacturer-client dialogue keeps both science and business moving. Some customers even visit our plant, reviewing procedures and offering valuable insights on solvent compatibility or scale-up bottlenecks. Our open-door policy generates mutual trust, and captures those details that don’t appear in certificates or glossy brochures.

    Improving Sustainability and Environmental Safety

    Chemical manufacturing faces real pressure to cut emissions, reduce solvent waste, and account transparently for every byproduct. We accept regulatory audits and internal reviews as opportunities to improve. In the past five years, we increased solvent recovery rates in the main oxidation step and switched to greener, closed-loop cooling systems. These investments trim both cost and environmental risk, a shift that matters not just to us, but to the global downstream brands demanding clean supply chains.

    By-products from synthesis—organic acids, spent reagents—used to head straight for incineration. Today, we divert a portion for raw material recovery, reducing hazardous disposal and feeding local chemical park supply loops. These steps don’t fix everything overnight, but each successful audit and lower emissions report marks tangible forward motion.

    Guidance for Customers Seeking Higher Performance

    End users ask regularly how to push yields, stop isomerization, or boost product stability. Years in the lab and on the plant floor allow us to suggest tweaks based on real outcomes, not just textbook chemistry. For example, managing solvent moisture and dosing speed during alkylations matter greatly. We have seen production runs ruined by over-exposure to air or a badly timed exotherm. Talking with upstream and downstream teams, we share adjustments—like using tailored antioxidants, temperature step protocols, or more effective drying agents—that make measurable differences.

    Packaging feedback has guided us through several improvements. Early customers flagged fiber drums as vulnerable to humidity—even when bagged. We now use thick, foil-lined canisters for sensitive shipments. R&D groups experimenting with small-scale reactions asked for re-sealable, protected flasks, improving reliability during extended study cycles. Having a short path between production and the field lets these changes happen quickly and pragmatically.

    Comparing Manufacturer Capabilities

    Not all manufacturing claims stack up equally. We have seen a rise in white-labeling, where intermediaries buy and rebag finished product from multiple sources, diluting accountability. Our advice to customers considering new suppliers: request batch-level purity data, ask for process descriptions that go beyond generic claims, and push for authentic answers about origin and handling.

    Direct producer access translates to more responsive technical support and genuine process insight. Any gap between lab-scale success and full-plant runs draws on real cumulative experience. Tweaking crystallization rate, scaling oxidation flows, or managing packaging to protect reactive edges—these only come from seeing years of trends, failures, and lessons. That history matters when margins and timelines squeeze tighter every year.

    Meeting the Next Generation of Industry Demands

    Researchers and production chemists approach us with diverse and often surprising needs. Some new material science research points to 2,6-Naphthoquinone as a key precursor in electronic and sensing applications. Others use the compound to explore new enzymatic inhibiters, relying on the material’s stable redox potential. Each new project brings further scrutiny on batch consistency, impurity profile, and logistical agility.

    Growth in custom synthesis projects has led us to adapt, offering tailored lot sizes or adjusted purity screening when called for. Rather than resisting these shifts, we work together with R&D teams to refine process or develop new specifications, driven by feedback instead of only market trends. Our on-the-ground experience means adapting to new requests with minimal lead time—something that builds loyalty and technical progress on both sides.

    Regulatory and Quality Assurance: A Manufacturer’s Perspective

    Meeting strict quality marks isn’t only about paperwork. Our facilities maintain ISO-certified processes, and our analytical chemists run full HPLC and GC checks on every production batch. End users often need more than a generic COA—they look for trace contaminant analysis, documented storage conditions, and full origin traceability, especially in pharma or food-related supply chains. Our long-term approach recognizes that every analytical slip could undermine a decade-long commercial relationship.

    Maintaining these standards means active investment. We continually upgrade our analytical equipment, redesign standard operating procedures following near-miss reports, and involve team members at every level in the audit process. Auditors and long-term partners frequently remark on the noticeable difference that plant-level ownership and regular retraining make in the finished product.

    How Direct Manufacturing Benefits the End User

    From the daily process checks to tailored technical support, direct engagement shapes not just the final molecule but the entire experience for our customers. We do not view 2,6-Naphthoquinone as a commodity but rather as a specialized raw material that anchors critical syntheses and technologies. Our team’s accumulated expertise stands behind every shipment—reflected in batch reproducibility, transparency, and readiness to solve real challenges with hands-on input.

    User applications keep evolving, and production has to keep up. Whether applied in the latest agricultural formulation, new pharmaceutical syntheses, or advanced polymer designs, the reliability and tailored support from a true manufacturer make a crucial difference. We see the results in decades-long relationships and in the ongoing research collaborations that rely on well-made 2,6-Naphthoquinone as their backbone.