Número de registro CAS

CAS 88-21-1 — Ácido ortanílico (ácido anilina-2-sulfónico)

Orthanilic acid (aniline-2-sulfonic acid) is an aromatic sulfonic acid derivative primarily used in dye manufacturing, pharmaceutical intermediates, and as a precursor for sulfonamide drugs. It appears as a white to off-white crystalline solid with applications in organic synthesis and chemical research. CAS 88-21-1, molecular formula H₂NC₆H₄SO₃H, molecular weight 173.19 g/mol. Store at ambient conditions. Signal word: Danger. Molekula supplies Orthanilic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.