United States Pharmacopeia (USP) Reference Standard
Synonym(s): 4-Aminobenzenesulfonic acid; Aniline-4-sulfonic acid
Empirical Formula: C6H7NO3S
Formula Weight: 173.19
Linear Formula: 4-(H2N)C6H4SO3H
MDL Number: MFCD00007886
Melting Point: >300 °C(lit.)
Beilstein Registry Number: 908765