| Identification | More | [Name]
2-Amino-4-chlorophenol-6-sulfonic acid | [CAS]
88-23-3 | [Synonyms]
2-AMINO-4-CHLOROPHENOL-6-SULFONIC ACID
3-AMINO-5-CHLORO-2-HYDROXYBENZENESULFONIC ACID
4-CHLORO-2-AMINOPHENOL-6-SULFONIC ACID
6-amino-4-chloro-1-phenol-2-sulfonic acid
3-amino-5-chloro-2-hydroxy-benzenesulfonicaci
3-amino-5-chloro-2-hydroxybenzenesulphonic acid
6-AMINO-4-CHLORO-1-PHENOL-2-SULPHONICACID
2-Amino-4-chlorphenol-6-sulfonsure
6-Amino-4-chlorophenol-2-sulfonic acid
BENZENESULFONICACID,3-AMINO-5-CHLORO-2-HYDROXY
2-Amino-4-chlorophenyl-6-sulfonic acid
2-Hydroxy-3-amino-5-chlorobenzenesulfonic acid
5-Chloro-2-hydroxymetanilic acid | [EINECS(EC#)]
201-813-5 | [Molecular Formula]
C6H6ClNO4S | [MDL Number]
MFCD00035768 | [Molecular Weight]
223.63 | [MOL File]
88-23-3.mol |
| Safety Data | Back Directory | [Hazard Codes ]
C | [Risk Statements ]
34 | [Safety Statements ]
S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . | [RIDADR ]
2811 | [HS Code ]
2922.29.8190 | [HazardClass ]
6.1 | [PackingGroup ]
III |
| Hazard Information | Back Directory | [General Description]
Off-white solid. | [Reactivity Profile]
6-AMINO-4-CHLORO-1-PHENOL-2-SULFONIC ACID(88-23-3) may react with strong oxidizing or reducing agents and with mineral acids and bases | [Air & Water Reactions]
May be sensitive to prolonged exposure to air and/or light. Insoluble in water. | [Fire Hazard]
Flash point data are not available for this compound, but 6-AMINO-4-CHLORO-1-PHENOL-2-SULFONIC ACID is probably combustible. | [Uses]
The acid is an important intermediate for dyes. It is used mainly in the manufacture of Diamond Black P 2 B and of acid chrome blue dyes. | [Production Methods]
2-Amino-4-chlorophenol-6-sulfonic acid obtained from p-chlorophenol by sulfonation and nitration is reduced with iron and hydrochloric acid without being precipitated. After filtering from the iron sludge, the highly alkaline reduction liquor is concentrated by evaporation and decolorized with activated carbon. Upon acidification 3-amino-5-chloro-2-hydroxybenzenesulfonic acid precipitates. Yield 72 %, based on p-chlorophenol. |
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