Category:
Prophylactic Biological Products
CAS NO:
98-67-9
Standard:
In-house Standards,
4-Hydroxybenzenesulfonic acid (CAS 98-67-9) is a key intermediate in dye and pharmaceutical synthesis. Produced via sulfonation of phenol, its molecular formula is C6H6O4S.
Store in cool, dry conditions away from oxidizers. Use PPE to prevent skin contact; inhalation may cause respiratory irritation. Not approved for direct clinical use without further processing.