Phenyl j acid

Phenyl J Acid (CAS 119-40-4), also referenced commercially as Phenyl I Acid, is a sulfonated naphthylamine derivative used as a key intermediate in the synthesis of azo dyes and reactive colorants.

Its structural features make it a building block for producing dyes with strong substrate affinity and defined hue characteristics across multiple industrial sectors. In textile dyeing, it is used to manufacture reactive and acid azo dyes.

These dyes bond directly to cellulosic and protein fibers, delivering consistent color depth and wash fastness. The printing and packaging industry relies on dyes derived from this intermediate for ink formulations where color precision is critical.

Substrate adhesion is a primary benefit in these applications. Leather processing operations use Phenyl J Acid-based dyes to achieve uniform penetration and surface coloration on finished hides, ensuring high-quality results.

It also functions as a pharmaceutical intermediate in the synthesis of select heterocyclic compounds requiring a sulfonated naphthol backbone. This versatility makes it a staple in specialized chemical manufacturing processes.

Phenyl J Acid is supplied as a dry powder or as a wet cake, depending on downstream processing requirements. Technical grade is the standard commercial offering, with purity specifications typically confirmed by HPLC or titration methods.

Packaging is available in drums and bulk quantities suited to industrial dye manufacturing operations. Our logistics team ensures that all shipments meet the rigorous safety and handling standards required for chemical transport.