从India供应商批发进口Acid Yellow 23 — FOB条款

Acid Yellow 23, also known as Tartrazine or C.I. 19140, is a synthetic monoazo acid dye with the molecular formula C16H9N4Na3O9S2 and CAS number 1934-21-0. Sparrowings International supplies this powder-form dye from Gujarat, India, targeting industrial colouration across food, leather, paper, and plastics sectors. The EINECS registration is 217-699-5, confirming EU market compliance for chemical inventory listing. This listing presents the dye as a versatile colorant rather than a niche specialty, suggesting broad formulation compatibility typical of commodity acid dyes.

Thee dye's sodium salt structure provides water solubility essential for aqueous dyeing processes in textile and leather applications. In food-grade contexts, Acid Yellow 23 functions as a synthetic colour additive, though the supplier does not specify FSSAI, FDA, or EFSA approval status in the source data. The powder form indicates standardised milling to consistent particle size for homogeneous dispersion. Typical commercial grades range from 80% to 85% minimum dye content, with the balance comprising sodium chloride, sodium sulphate, and moisture from the synthesis salting-out process. Buyers should request a certificate of analysis specifying colour strength at 1/1 and 1/3 standard depths to verify lot consistency.

Primary application areas include food dyestuffs (confectionery, beverages, pharmaceuticals), leather finishing, paper coating, and plastics coloration. Textile dyers value Acid Yellow 23 for its bright greenish-yellow shade on wool and silk at pH 2.5 to 5.5. The pigment also sees use in ink formulations and detergent colourants where lightfastness demands are moderate. Importers should confirm with Sparrowings International whether the offered grade is food-grade, technical-grade, or both, as regulatory documentation and pricing diverge significantly between these classifications.

Sparrowings International operates from D-101, Maruti Homes, opposite Shreenath Elegance, in Nana Chiloda, Ahmedabad, Gujarat 382330, India. The company holds a Harbor trust tier classification on the platform, with a recorded response rate of 0.00% and no average response hour data available. These signals indicate limited or no engagement history through platform messaging, soerendering direct contact verification essential for buyers.

The supplier lists Acid Yellow 23 under multiple application categories (food, leather, paper, plastics) without specifying separate product codes or grades for each sector. The source description does not mention manufacturing capacity, R&D facilities, quality control infrastructure, or export experience. Buyers should request company registration documents, GST registration, and any existing export compliance records (REACH, IFRA, FSSAI) before committing to orders. No information about workforce size, annual turnover, or client references is available in the listing data.