C6H6ClNO3S
207.64 g/mol
Dye & PigmentWarning
3-Amino-4-chlorobenzenesulfonic acid
CAS98-36-2EC202-661-2
Category
Dye & Pigment
Compound Class
Amine
Primary Use
Dye and pigment intermediate
3-Amino-4-chlorobenzenesulfonic acid is an aromatic compound containing an amino group, a chlorine substituent, and a sulfonic acid group. It is primarily used as an intermediate in the production of dyes and pigments.
dye and pigment intermediate
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
ApplicationSame Use
3-Chloro-2-methyl-6-nitroaniline
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Dye and pigment intermediate
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4-chloro-2-nitroaniline
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Dye and pigment intermediate
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3-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid
CAS119-17-5
Dye and pigment intermediate
ApplicationSame Use
H2TPTBP
CAS80528-89-8
Dye and pigment intermediate
ReferenceSame Category
3-amino-4-hydroxybenzenesulfonic acid
CAS98-37-3
Dye intermediate
ReferenceSame Category
3-amino-4-methoxybenzenesulfonic acid
CAS98-42-0
dye intermediate for food products
ReferenceSame Category
2-amino-p-benzenedisulfonic acid
CAS98-44-2
dye intermediate
ReferenceSame Category
2,9-dimethylquinacridone
CAS980-26-7
Pigment for plastics and dyes
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
Customs Tariff Classification
The international HS code for 3-Amino-4-chlorobenzenesulfonic acid (CAS 98-36-2) is 2921.42.
HS code (international, 6-digit)
2921.42
EU CN code (8-digit)
2921 42 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
3-amino-4-chlorobenzenesulfonic acid
InChIKey
XJQRCFRVWZHIPN-UHFFFAOYSA-N
SMILES
C1=CC(=C(C=C1S(=O)(=O)O)N)Cl
Synonyms (12)
- 4-Chlorometanilic acid
- Metanilic acid, 4-chloro-
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