Category:
Chiral Intermediates
CAS NO:
121-57-3
Standard:
In-house Standards,
as intermediate of dyes, perfumes, food pigments, medicines, pesticides and building materials
4-Aminobenzenesulfonic acid (CAS 121-57-3) is a key aromatic amine intermediate produced via sulfonation of aniline. Its molecular formula is C6H7NO3S, serving as a fundamental building block for dye and pharmaceutical synthesis.
Store in cool, dry, ventilated areas away from oxidants. Use PPE to prevent skin contact and inhalation; avoid ingestion due to potential toxicity.