C10H8O8S2
320.3 g/mol
Dye & PigmentWarning
4,5-dihydroxynaphthalene-2,7-disulfonic acid
CAS148-25-4EC205-712-7
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
Azo dye intermediate
Chromotropic acid is a naphthalenesulfonic acid derivative with hydroxyl and sulfonic acid groups, commonly used as an analytical reagent and intermediate in azo dye manufacturing.
analytical reagentintermediate for azo dyes
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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CAS 148-25-4
Related Compounds
SimilarStructure SimilarSimilarity 0.74
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Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Identifiers
IUPAC Name
4,5-dihydroxynaphthalene-2,7-disulfonic acid
InChIKey
HLVXFWDLRHCZEI-UHFFFAOYSA-N
SMILES
C1=C2C=C(C=C(C2=C(C=C1S(=O)(=O)O)O)O)S(=O)(=O)O
Synonyms (8)
- 4,5-DHN-2,7-DSA
- Chromotropic acid