Import 4-Aminonaphthalene-1-Sulfonic Acid — Buy in Bulk from Supplier in China

4-Aminonaphthalene-1-sulfonic acid, also known as Naphthionic Acid, is a grayish-white crystalline powder with the molecular formula C10-H9-N-O3-S. This compound is primarily used in the synthesis of azo dyes, where its amino and sulfonic groups enable strong bonding and color stability in textile applications. The product meets standard chemical purity requirements for industrial use, ensuring consistent reactivity in dye and analytical chemistry processes.

As a key intermediate in dye manufacturing, this compound is valued for its solubility in alkaline solutions and its ability to form stable diazonium salts, which are essential for producing vivid, fast colors in fabrics. Typical industry specifications for such intermediates include a minimum assay of 98% for dye-grade applications, with controlled levels of insoluble matter and moisture to prevent processing issues. The grayish-white appearance indicates a well-crystallized product, suitable for direct use in formulations.

Industries sourcing this compound include textile dye producers, analytical laboratories, and chemical manufacturers specializing in organic synthesis. Buyers often prioritize suppliers with reliable batch consistency and the ability to provide certificates of analysis for each shipment. For bulk imports from China, confirm packaging options, as standard 25 kg fiber drums are common for this product. The compound is typically shipped as a dry powder, requiring protection from moisture during transit.

Tianjin Jahe Science & Technology Co., Ltd is based in Huayuan Industry Zone, Tianjin, with its office and operations located at 702, Entrance 2, Building 8, Tianfa Scientific & Technological Park. The company specializes in the supply of chemical intermediates, including sulfonic acids and related compounds, catering to industrial and laboratory clients. As an imported-tier supplier, it focuses on connecting international buyers with Chinese chemical manufacturers.

The supplier’s profile indicates a harbor trust tier, which reflects a baseline verification level for trade activities. While the response rate is currently unrecorded, the company’s address and operational details are publicly listed, providing a verifiable point of contact for sourcing inquiries. Buyers are advised to request updated certificates of analysis and compliance documentation directly from the supplier to confirm product specifications and quality standards.