Import Bispyrithione -Cas: 3696-28-4 — Buy in wholesale FOB from Supplier in China

Bispyrithione (CAS 3696-28-4), also known as dipyrithione, is an organic sulfur compound belonging to the pyrithione class of biocides. It consists of two pyrithione units linked through a disulfide bridge, giving the molecular formula C10H8N2O2S2 and a molecular weight of 252.32 g/mol. The compound presents as a pale yellow to off-white crystalline powder with characteristic mild sulfur odour, and the supplier offers this material in bulk powder form for industrial formulation. Wuxi Hscical Co., Ltd sources from Wuxi, Jiangsu Province, with the supplying facility located at No.1619 Huishan Avenue in the Huishan District. The material is supplied as a technical-grade active ingredient rather than a finished consumer product, intended for downstream formulation into antimicrobial applications.

The compound functions primarily as a broad-spectrum microbiostat and fungistat, effective against both Gram-positive and Gram-negative bacteria, yeasts, and filamentous fungi. Its mode of action involves chelation of essential metal ions (particularly zinc and iron) within microbial cells, disrupting cellular respiration and ATP production. Typical purity for commercial bispyrithione ranges from 98.0% to 99.5% by HPLC assay, with standard impurities including residual pyrithione monomer and related sulfur-containing byproducts. The material exhibits good thermal stability under normal storage conditions but is sensitive to strong alkalis and oxidizing agents, which can cleave the disulfide linkage. Standard packaging for powder biocides of this class is 25 kg net weight in polyethylene-lined fibre drums with nitrogen purging, though buyers should confirm Wuxi Hscical Co., Ltd's specific packaging configuration.

Primary application sectors include personal care formulations (antidandruff shampoos, antimicrobial skin preparations), industrial coatings and paints (in-can preservation, film protection), and agricultural fungicidal treatments. The compound is valued in coatings for its low water solubility (approximately 10 mg/L at 25°C), which provides leach resistance in exterior applications. Bispyrithione is also employed in metalworking fluids, adhesives, and leather treatment processes where long-term fungal protection is required. Buyers should note that the supplier's response rate is currently recorded at 0.00%, and no average response time is available, so direct enquiry through the listed contact channels is essential to confirm current availability, minimum order quantities, and specific certificate of analysis provisions.

Wuxi Hscical Co., Ltd is a chemical supply business based in Wuxi, Jiangsu Province, eastern China. The company's registered address is No.1619 Huishan Avenue, Huishan District, Wuxi, with postal code 214177. The supplier holds a "harbor" trust tier designation, which represents a baseline verification level on the platform. Critically, the supplier's response rate is recorded at 0.00% with an average response time of zero hours, indicating no recent engagement metrics are available through the platform. This absence of response data means buyers must initiate direct contact to assess current operational status, product availability, and the company's capacity to fulfil orders.

The listing provides no information about the company's establishment date, production capabilities, workforce size, annual turnover, or specific quality management certifications. There is no mention of ISO certification, GMP compliance, or other third-party accreditations attached to this supplier profile. Buyers are advised to request a company profile, business licence verification, and references to independent due diligence before committing to orders. The supplier's location in Wuxi places it within the Yangtze River Delta industrial corridor, a region with extensive chemical manufacturing infrastructure, though this geographic溶解regional context does not confer any specific assurance about this particular company's capabilities.