BISPYRITHIONE

    • Product Name: BISPYRITHIONE
    • Chemical Name (IUPAC): 2,2'-dithiobis(pyridine N-oxide)
    • CAS No.: 66817-71-6
    • Chemical Formula: C10H8N2O2S2
    • Form/Physical State: Powder
    • Factroy Site: No.968 Jiangshan Rd., Nantong ETDZ, Jiangsu, China
    • Price Inquiry: sales7@boxa-chem.com
    • Manufacturer: Nantong Acetic Acid Chemical Co., Ltd.
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    Specifications

    HS Code

    141591

    Chemical Name Bis(2-pyridylthio)zinc-1,1'
    Common Name Bispyritihione
    Cas Number 13463-41-7
    Molecular Formula C10H8N2O2S2Zn
    Molecular Weight 317.7 g/mol
    Appearance Pale yellow powder
    Solubility Low in water, soluble in organic solvents
    Melting Point 240-250°C (decomposes)
    Main Use Antimicrobial and antifungal agent
    Stability Stable under recommended storage conditions
    Logp 3.65
    Storage Conditions Store in a cool, dry place away from direct sunlight

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

    Packing & Storage
    Packing A 500g amber plastic bottle with a tamper-evident cap, labeled "BISPYRITHIONE" and hazard warnings, ensuring safe storage and transport.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for BISPYRITHIONE: Packed in 200kg drums, total 80 drums per 20′ FCL, net weight 16 metric tons.
    Shipping Shipping of BISPYRITHIONE should be conducted in compliance with local regulations for hazardous chemicals. It must be packed in airtight, corrosion-resistant containers, properly labeled with hazard warnings. The chemical should be stored and transported in cool, dry conditions, away from incompatible substances, and handled by trained personnel wearing appropriate protective equipment.
    Storage BISPYRITHIONE should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from direct sunlight and incompatible substances such as strong oxidizers and acids. Avoid exposure to moisture and extreme temperatures. Ensure containers are clearly labeled and protected from physical damage. Implement appropriate spill and leak prevention measures for safe handling and storage.
    Shelf Life Bispyrithione typically has a shelf life of 2 years when stored in a cool, dry place in tightly sealed containers.
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    Tel: +8615371019725

    Email: sales7@boxa-chem.com

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    Certification & Compliance
    More Introduction

    Bispyrithione: Practical Innovation for Modern Anti-Microbial Demands

    What Makes Bispyrithione Stand Out in Our Production Line

    In years of chemical production, few molecules have shown such consistent value in challenging conditions as bispyrithione. We pour years of manufacturing know-how into every batch, focusing on purity, stability, and consistency. In our workshops, we've seen industry standards evolve, regulatory pressure tighten, and expectations from downstream users grow sharper. Bispyrithione stands the test as an advanced, high-performing anti-microbial agent designed for specialty coatings, advanced textiles, and selective industrial processes where broad-spectrum protection and lasting power matter most. Through our hands-on experience, we've found bispyrithione excels where other solutions fall short — giving formulators a practical answer to biofouling, microbial-induced degradation, and mold risk without trading away ease of use.

    Model and Specifications That Reflect Real Production Demands

    Each synthesis run brings its own lessons. Our standard production model delivers bispyrithione in a technical-grade powder, targeting a typical purity level of 98% or higher. We run rigorous, in-house chromatography and titration checks because trace by-products can mean process trouble or final product inconsistencies. Moisture sensitivity can set some anti-microbials back, but we've engineered bispyrithione batches for tight residual moisture—below 1%—to give customers less worry about shelf life or formulation misbehavior. Particle size distribution matters for dispersibility, so we control our milling and blending to keep the bulk of the material between 20 and 80 microns. This attention to small details comes from years of talking to formulators struggling with agglomeration or sedimentation. Color and odor have been optimized through careful upstream raw material screening and downstream purification. Our product runs as a light yellow solid, packing a mild, distinctive fragrance that vanishes after blending.

    Direct Experience: Usage That Answers Real Problems

    Feedback from textile mills, marine paint formulators, and water treatment operations shapes our process. Bispyrithione enters application mixes as an active ingredient for its broad-spectrum activity against both fungi and bacteria. In our on-site test sites, we've seen material scientists use bispyrithione at concentrations as low as 0.1% by weight in advanced coating systems, managing to arrest mold bloom and bacterial colonization for months longer than older chemistries. Textile manufacturers notice a tangible difference in mildew protection for outdoor gear and upholstery, especially under high humidity. Our own follow-up studies prove that surfaces treated with bispyrithione formulations show a significant drop in colony-forming unit counts, even after prolonged water exposure or repeated use. Out in the field, we've handled requests for supporting documents from clients trying to meet changing safety and environmental standards. Knowing the latest compliance metrics and cutoffs, we provide a straightforward dossier with every order.

    How Our Bispyrithione Differs From Other Choices

    It’s common for buyers to compare bispyrithione against more familiar biocides like zinc pyrithione or copper-based fungistats. Over the years, we've seen end-users switch to bispyrithione looking for performance without the metal contamination that can lead to regulatory headaches or product recalls. Unlike many legacy options, bispyrithione introduces two pyrithione rings bridged by a sulfur atom, unlocking higher bioactivity at lower dose rates. In our own hands, the difference becomes clear during tough application trials: more durable action on non-woven substrates and a lower tendency to trigger yellowing or surface discoloration in sensitive polymers. Industrial customers come back to us with positive outcomes on long-term leach testing, pointing out how formulations with bispyrithione hold their anti-fungal edge even after extended water or solvent exposure.

    Bispyrithione also supports formulators tackling the next wave of environmental rules. Meeting demands for lower heavy metal residues has become a daily concern, especially in consumer goods, paints, and building materials. Where zinc-based anti-microbials struggle to meet these new benchmarks, bispyrithione lets our customers stay competitive. Our internal green chemistry task force runs continuous, batch-by-batch toxicology checks, pushing for the lowest possible impact on aquatic systems and non-target organisms.

    Tackling Practical Formulation and Processing Challenges

    Beyond lab tests and regulatory documents, real-world use brings out flaws in many active chemicals. A decade ago, we watched too many partners fighting caking or slow dispersion in their mixing tanks. We committed to better process control—batch drying under inert atmosphere and post-milling sieving have been crucial. By tuning our process, we've reduced dust-off during handling, minimizing inhalation risk for factory workers without relying on downstream additives. Some clients tried alternative anti-microbials, only to hit processing snags: micronized zinc salts gumming up spray nozzles, organic biocides breaking down under UV. After direct troubleshooting with these partners, we found that bispyrithione’s compact molecular weight and crystalline structure keep processing lines running smooth, with no unusual cleaning routines between batches.

    Many biocides drop efficacy when locked in resin systems or hydrophobic textile finishes. Our R&D labs ran side-by-side trials comparing migration and retention rates on treated substrates. Results show bispyrithione gives persistent protection, even after repeated simulated rainfall or laundering. In one case, an outdoor fabric supplier switched over and slashed warranty claims for mildew staining by over half in a single season.

    Supporting Quality, Traceability, and Transparency for Every Lot

    We’ve operated long enough to see how traceability protects both us and our partners. Bispyrithione from our plant carries a full chain-of-custody, starting from raw material sourcing through finished product packaging. Every lot comes with batch-specific certificates showing not just purity and moisture, but also breakdown analysis for trace isothiazolinones and other critical side-products. If questions arise, we can supply retained samples for any batch going back five years, supporting every audit or product recall scenario with real data. This transparency builds trust and protects buyers from supply chain surprises, especially as authorities tighten inspection procedures.

    Adapting to Regulatory and Market Pressures With Flexibility

    A big challenge for anti-microbials in today’s markets lies not just in performance but in regulatory acceptance. Bispyrithione now faces growing scrutiny in some regulated markets, including Europe and North America. As REACH evolves, and California takes a closer look at persistent chemicals, every biocide producer feels the pressure. We have responded by investing in ongoing toxicology, eco-toxicity modeling, and employee training designed to support our customers’ compliance requirements. In Asia and parts of South America, where rules differ, we help partners adapt to country-specific submission processes. Our regulatory teams attend international working groups, making sure our dossiers anticipate the latest data demands and respond to updates before they become enforcement issues. We don’t simply update labels and call it done — we follow up with partners periodically, sharing the latest status on approvals, risk assessments, and safe use recommendations so their own compliance plans stay on track.

    Planning for the Next Generation of Anti-Microbial Needs

    Market demands never stay still. The trend toward environmentally responsible chemicals drives our technical agenda. Alternative actives based on organic and metal-organic frameworks look promising, but many still can’t touch bispyrithione’s spectrum or ease of integration into tough applications. Our technical feedback loop—real usage data, end-user case studies, process troubleshooting—shapes requests for better dispersibility, lower environmental persistence, or combinations that pair bispyrithione’s potency with softer support chemicals. We invest in pilot-scale coformulation trials, letting us recommend practical blends or packages, rather than offering off-the-shelf solutions that haven’t been field-tested.

    Real-world industry feedback keeps us honest. In high-moisture building panels, for example, bispyrithione combines with advanced binder chemistries and tested plasticizers to counter both microbial threat and process fatigue. Paint labs ask for lower VOC footprints, so our support crew works with them to optimize dosing at the lowest working concentrations. Each sample request flows into our technical files, informing both our batch control and long-term strategic research.

    Challenges and Solutions: Evolving With End-User Demands

    No active ingredient answers every need out of the box. For all its strengths, bispyrithione has edges: at high pH, it loses stability faster than some inorganic biocides. Our lab techs have fielded calls about this from both paint makers and water treatment clients. Addressing this, we supply proven stabilizer packages and clear guidelines, based on field tests done in direct partnership with users. For cost-sensitive applications, we also offer custom order sizes and flexible logistics, so clients avoid overstocking or waste.

    We learned long ago that clear guidance matters as much as product quality. That's why our sales and application specialists provide direct support for blend ratios, process temperatures, and batch timing. Many clients with legacy equipment move to bispyrithione needing technical tips for dispersing powders into solventless systems. Our specialists walk lines with their teams, running tests and troubleshooting in real time—cutting down on surprises during scale-up.

    Feedback and Case Studies From Daily Practice

    Direct partnerships fuel our development. Last year, a leading floor-care brand documented a substantial drop in surface blackening complaints after switching to our bispyrithione. Their in-house labs had tried several actives but found competitive products either underperformed or broke down after repeated detergent exposure. Through a gradual switch and technical feedback sessions, we helped them tweak both dosage and application, leading to visible improvement in end-user experience. Similarly, a marine crop protection firm tested our product in warm, estuarine conditions notorious for aggressive biological fouling. Despite repeated immersion and strong UV exposure, treated panels surpassed reference controls, staying cleaner for longer periods.

    Secure Supply, Local Service, and Future Choices

    Keeping chemical supply stable matters as much as anything else in today’s tight logistics scene. Our integrated production model—single-site synthesis, on-site QA, and local stocking—lets us guarantee consistent lead times and full flexibility for seasonal or sudden volume swings. Having field service agents and technical managers spread across major user regions, we can respond to on-the-ground process needs versus just shipping barrels and technical data sheets. Every month we gather fresh feedback from blending shops, application lines, and R&D labs, which re-shapes our approach to both batch scheduling and technical support. This two-way street makes us better at what we do and keeps our bispyrithione products tuned for real-world use.

    Outlook: Bispyrithione’s Place in the Changing Anti-Microbials Landscape

    The market for anti-microbial chemicals never stops changing. Safety, efficacy, and environmental profile take center stage during every reformulation and sourcing decision. From our vantage point on the factory floor, bispyrithione represents one of the most competitive choices for manufacturers that value reliable protection against microbes, process compatibility, and support for ever-evolving regulations. Grounded in rigorous, hands-on experience, we continue investing in process stabilization, application support, and transparent communications so that partners can move forward with confidence.

    The trust our customers place in us comes from more than just a line on a product sheet—it’s built from years of shared challenge, clear decision-making, and proven chemistry. Bispyrithione remains a standout among anti-microbials not just for its technical properties, but for the production logic, regulatory awareness, and practical feedback that go into every batch leaving our plant. We believe that practical, real-world solutions come from experience, adaptability, and an open ear to both the industry and the regulators who shape its future.