2-Amino-4-chloro-5-methylbenzenesulfonic acid

2-Amino-4-chloro-5-methylbenzenesulfonic acid Basic information

Product Name:	2-Amino-4-chloro-5-methylbenzenesulfonic acid
Synonyms:	5-amino-4-chloro-2-methylbenzenesulfonic acid;Aminochlorotoluenesulfonicacid;2-CHLORO-4-AMINO TOLUENE-5-SULFONIC ACID;2B ACID;2-AMINO-4-CHLORO-5-METHYLBENZENESULFONIC ACID;2-CHLORO-PARATOLUIDINE-5-SULFONIC ACID;2-Chloro-4-Aminotoluene-5-Sulphonic Acid (2B Acid);2BAcid/4BAcid
CAS:	88-51-7
MF:	C7H8ClNO3S
MW:	221.66
EINECS:	201-837-6
Product Categories:	API Intermediate;Intermediates;Intermediates of Dyes and Pigments
Mol File:	88-51-7.mol

2-Amino-4-chloro-5-methylbenzenesulfonic acid Chemical Properties

Melting point	>300°C
Boiling point	163°C (rough estimate)
density	1.3031 (rough estimate)
vapor pressure	0-0Pa at 25℃
refractive index	1.6210 (estimate)
storage temp.	Keep in dark place,Inert atmosphere,Room temperature
solubility	Aqueous Acid (Slightly), DMSO (Slightly)
pka	-1.58±0.50(Predicted)
form	Solid
color	Off-White to Pale Red
LogP	-0.97--0.89 at 23℃ and pH2.6
CAS DataBase Reference	88-51-7(CAS DataBase Reference)
EPA Substance Registry System	Benzenesulfonic acid, 2-amino-4-chloro-5-methyl- (88-51-7)

Safety Information

MSDS Information

Provider	Language
2-Amino-4-chloro-5-methylbenzenesulfonic acid	English
ALFA	English

2-Amino-4-chloro-5-methylbenzenesulfonic acid Usage And Synthesis

Chemical Properties	White to buff powder. Essentially insoluble as free acid; soluble as sodium or ammonium salt.
Uses	2-Amino-4-chloro-5-methylbenzenesulfonic Acid is used in method for preparing environment-friendly organic pigment for agricultural seed coating.
Uses	Intermediate for azo pigments.

2-Amino-4-chloro-5-methylbenzenesulfonic acid Preparation Products And Raw materials

Raw materials	Sodium sulfide-->4-Nitrotoluene-->2-Chloro-4-nitrotoluene-->3-Chloro-4-methylaniline
Preparation Products	Pigment Red 21-->Pigment Red 48:2-->Pigment Fast Dark Red BBM-->Pigment Red 48:1-->Pigment Red 48:3

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