CAS Registry Number

CAS 116-63-2 — 4-Amino-3-hydroxy-1-naphthalenesulfonic acid

4-Amino-3-hydroxy-1-naphthalenesulfonic acid (CAS 116-63-2) is an organic sulfonic acid derivative used primarily in dye synthesis, particularly for azo dyes in textiles, leather, and paper industries. Its molecular formula is H₂NC₁₀H₅(OH)SO₃H with a molecular weight of 239.25 g/mol. Store at ambient conditions. The signal word is Warning, indicating moderate hazard. Molekula supplies 4-Amino-3-hydroxy-1-naphthalenesulfonic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.