S Acid

Name:
S Acid
Detailed information:

Chemistry name:	1-amino-8-naphthol-4-sulfonic acid
Properties:
Gray needles, white when pure. Slightly soluble in water, insoluble in alcohol and ether.
Derivation:
Fusion of 1-naphthylamine-4,8-disulfonic acid with sodium hydroxide.
Use:
Azo dye intermediate.