C7H9NO3S
187.22 g/mol
Dye & PigmentDanger
5-Amino-2-methylbenzenesulfonic acid
CAS118-88-7EC204-282-8
Category
Dye & Pigment
Compound Class
Amine
Primary Use
dye intermediate for food coloring
5-Amino-2-methylbenzenesulfonic acid, also known as p-cresidinesulfonic acid, is a synthetic organic compound derived from toluidine. It is primarily used as an intermediate in the production of specialty dyes for food products.
dye intermediate for food coloring
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
3-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid
CAS119-17-5
Dye and pigment intermediate
ReferenceSame Category
7-Anilino-1-naphthol-3-sulfonic acid
CAS119-19-7
dye intermediate
ReferenceSame Category
1,7-cleve'S acid
CAS119-28-8
Azo dye intermediate
ReferenceSame Category
4-methyl-3-nitroaniline
CAS119-32-4
dye intermediate
Safety Reference
Danger
H314Causes severe skin burns and eye damage
H319Causes serious eye irritation
Customs Tariff Classification
The international HS code for 5-Amino-2-methylbenzenesulfonic acid (CAS 118-88-7) is 2921.43.
HS code (international, 6-digit)
2921.43
EU CN code (8-digit)
2921 43 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
5-amino-2-methylbenzenesulfonic acid
InChIKey
BRKFTWHPLMMNHF-UHFFFAOYSA-N
SMILES
CC1=C(C=C(C=C1)N)S(=O)(=O)O
Synonyms (22)
- 3-SULFO-4-METHYLANILINE
- 4-Amino-2-sulfotoluene
- 4-Methyl-3-sulfoaniline
- 4-TOLUIDINE-3-SULFONIC ACID
- 4-toluidine-3-sulfo acid
- Pazopanib Impurity 72
- p-Toluidine-o-sulfonic acid
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