C6H6NNaO3S
195.17 g/mol
Dye & PigmentWarning
Sodium 4-aminobenzenesulfonate
CAS515-74-2EC208-208-5
Category
Dye & Pigment
Compound Class
Amine
Primary Use
chemical intermediate for dyes
Sodium 4-aminobenzenesulfonate is an organic salt commonly used as a chemical intermediate in the synthesis of dyes. It features an aromatic ring with an amine group and a sulfonate group, contributing to its polar, water-soluble character.
chemical intermediate for dyesintermediate for pharmaceuticalsintermediate for other organic syntheses
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
StrongSame Parent
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ApplicationSame Use
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ReferenceSame Category
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ReferenceSame Category
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ReferenceSame Category
3-Nitrophthalonitrile
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intermediate for phthalocyanine dyes and pigments
Referencestereoisomer of
Sulfanilic acid
CAS121-57-3
Intermediate for dyes and organic chemicals
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H317May cause an allergic skin reaction
Customs Tariff Classification
The international HS code for Sodium 4-aminobenzenesulfonate (CAS 515-74-2) 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
sodium 4-aminobenzenesulfonate
InChIKey
KSVSZLXDULFGDQ-UHFFFAOYSA-M
SMILES
C1=CC(=CC=C1N)S(=O)(=O)[O-].[Na+]
Synonyms (18)
- 4-Sulfoaniline Sodium Salt
- 4Aminobenzol1sulfonsaeureNa
- 4SulfoanilinNa
- Sodium p-Anilinesulfonate
- Sodium sulfanilate
- Sodium sulphanilate
- Sulfanilic Acid Sodium Salt
- Sulfanilsaure Na Salz
- pSulfanilsaeure Na
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