C12H11N3O6S2
357.4 g/mol
Dye & PigmentWarning
4-Aminoazobenzene-3,4'-disulfonic acid
CAS101-50-8EC202-947-7
Category
Dye & Pigment
Compound Class
Amine
Primary Use
Biological stain fast yellow
4-Aminoazobenzene-3,4'-disulfonic acid is a chemical compound primarily used as a biological stain. It is characterized by amine and sulfonic acid functional groups on an aromatic backbone, contributing to its solubility and staining properties.
Biological staining agentFast yellow dye
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
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Referencesame scaffold
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Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 4-Aminoazobenzene-3,4'-disulfonic acid (CAS 101-50-8) is 2927.00.
HS code (international, 6-digit)
2927.00
EU CN code (8-digit)
2927 00 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
2-amino-5-[(4-sulfophenyl)diazenyl]benzenesulfonic acid
InChIKey
DCYBHNIOTZBCFS-UHFFFAOYSA-N
SMILES
C1=CC(=CC=C1N=NC2=CC(=C(C=C2)N)S(=O)(=O)O)S(=O)(=O)O
Synonyms (20)
- Azobenzene-3, 4-amino-
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