Synonyms: 4B acid; p-Toluidine-o-sulfonic acid; 2-Amino-5-methylbenzenesulfonic acid; 4-aminotoluene-3-sulphonic acid; 2-amino-5-methylbenzenesulfonate; 4-Aminotoluene-3-sulfonic acid

CAS NO: 88-44-8

EINECS：201-831-3

Molecular Formula: C7H9NO3S

Molecular Weight: 187.216

Appearance: white crystalline powder

Purity: 99%

Packing: 25kg fibre drum

Usage: important intermediate of organic pigments，can be synthesized pigment brilliant red 6B, Risol Red BK