从India供应商批发进口Acid Brown 83 Dyes — FOB条款

Acid Brown 83 is an acid dye with CAS number 13011-68-2 and EINECS number 235-862-9, supplied by Sparrowings International from their base in Gujarat, India. The molecular formula is C18H13N6NaO8S, classifying it as a sodium salt containing azo and sulfonic acid functional groups typical of acid dye chemistry. This powder-form dye is manufactured in Ahmedabad and is positioned for leather and textile dyestuff applications where it bonds to protein and polyamide fibers through ionic attraction.

The dye's chemical structure incorporates a sulfonate group that confers water solubility, while the azo chromophore delivers the characteristic brown shade on wool, silk, and nylon substrates. Standard industrial grades of Acid Brown 83 typically exhibit good light fastness and moderate wash fastness on wool, though performance varies with application conditions and after-treatment. The powder form allows for precise weighing and dissolution in dyebaths, with typical preparation involving dispersion in warm water followed by acid addition to achieve optimal exhaustion onto the fiber.

Textile mills and leather finishing operations constitute the primary buyer segments, with the dye finding use in apparel fabrics, upholstery, and leather goods where brown tones are required. Sparrowings International lists usage categories explicitly for leather and textile dyestuffs, indicating formulation familiarity with both sectors. Buyers should confirm the specific shade strength, purity percentage, and any metal-complex modifications with the supplier, as Acid Brown 83 variants may differ in substitution patterns affecting hue and fastness properties. Standard packaging for acid dyes in Indian export trade is typically 25 kg fiber drums or cartons, though Sparrowings International does not specify this in the listing.

Sparrowings International operates from D-101, Maruti Homes, opposite Shreenath Elegance, in the Nana Chiloda area of Ahmedabad, Gujarat, India, pin code 382330. The supplier holds a harbor trust tier classification and shows a response rate of 0.00% with zero average response hours recorded, indicating limited or no recent buyer engagement through the platform. The company markets Acid Brown 83 under their own Sparrowings brand name, suggesting either manufacturing capability or exclusive distribution arrangements for this specific dye article.

The listing provides verified location data through the supplier address but does not disclose production capacity, factory ownership status, export license details, or quality management certifications. No MOQ, pricing, lead time, or Incoterms appear in the source material. Buyers should conduct direct due diligence on manufacturing credentials, batch consistency, and regulatory compliance documentation before committing to volume orders.