Cas No. :90-51-7
			        
			        
			        
			        
			        Name:2-Amino-8-naphthol-6-sulfonic acid   
Alias: Gamma Acid; 7-amino-1-naphthol-3-sulfonic acid; 
7-amino-1-hydroxy-3-sulfonaphthalene; 
6-amino-4-naphthol-2-sulfonic acid; 
6-amino-4-hydroxy-2-naphthalenesulfonic acid; 2-Naphthalenesulfonicacid,6-amino-4-hydroxy-; 6-amino-4-hydroxy-2-naphthalenesulfonicaci
 
    CAS NO.90-51-7 
EINECS:202-000-8
Molecular Formula : C10H9O4NS
Molecular Weight : 239.24
Index: 
|  | Appearance | Content  | Amino G acid | Bronner acid | DOG Acid  | Ash  | Moisture  | 
| Tide product | Gray paste  | ≥55% | ≤0.2% | ≤1.0% | ≤0.3% |   |   | 
| Ordinary product | Light Gray Powder  | ≥90% | ≤0.3% | ≤1.0% | ≤0.5% | ≤0.3% | ≤5.0% | 
| Boutique | ≥95% | ≤0.2% | ≤1.0% | ≤0.3% | ≤3.0% | ≤3.0% | 
| Boutique | ≥98% | ≤0.1% | ≤1.0% | ≤0.1% | ≤0.5% | ≤1.0% | 
 
 
Application: Mainly used for Azo dye intermediates, manufacturing activity and the direct dyes. Used in Direct diazotization black BH, Direct dark brown M, Direct red GB, Direct red F, Direct N and Direct Grey etc.