Chemical Name: 2-Chloro-4-amino-toluene-5-sulfonic acid
Molecular Formula：C7H8SO3ClN
Structural Formula：
Molecular Weight：221.66
CAS No: 88-51-7
Uses：Primarily used in the synthesis of organic pigments, particularly red PR48 series, and other organic synthesis industries.
Physical and Chemical Properties:
It can undergo diazotization with nitrite in dilute acid.
Possesses typical amine characteristics.
Soluble in dilute alkaline solutions.
Slightly soluble in ethanol and ether.
Insoluble in cold water, benzene, and chlorobenzene.
Slightly soluble in hot water.
Technical Requirements
| Item | Indicator | |
| Coarse Product | Premium Product | |
| Appearance | Gray with a slight reddish powder | White or light pink powder |
| Amino Value (2B Acid Content) (%) | ≥98.00 | ≥98.50 |
| Moisture Content (%) | ≤0.50 | ≤0.50 |
| Insoluble Matter in 10% Ammonia Solution (%) | ≤0.50 | ≤0.40 |
| Ash Content (%) | ≤0.50 | ≤0.50 |
| 2B Oil Content (%) | ≤0.40 | ≤0.30 |
2B Acid
2B Acid
2B Acid
CN
