C10H6Na2O8S2
364.3 g/mol
Dye & PigmentDanger
Chromotropic acid disodium salt
CAS129-96-4EC204-972-9
Category
Dye & Pigment
Compound Class
Organic Acid
Primary Use
Mordant dye and analytical reagent
Chromotropic acid disodium salt is a disodium salt of 4,5-dihydroxynaphthalene-2,7-disulfonic acid. It is primarily used as a mordant dye and an analytical reagent.
Mordant dyeAnalytical reagent
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 129-96-4
Related Compounds
StrongSame Parent
Disodium chromotropate dihydrate
CAS5808-22-0
dye and pigment intermediate
ReferenceSame Category
Sodium naphthionate
CAS130-13-2
naphthalene sulfonate dye intermediate
ReferenceSame Category
2-(4-Aminophenyl)-6-methyl-1,3-benzothiazole-7-sulfonic acid
CAS130-17-6
Intermediate for azo dyes
ReferenceSame Category
1-Amino-8-naphthol-4,6-disulfonic acid
CAS130-23-4
intermediate for dye production
ReferenceSame Category
1-(2-Cyanostyryl)-4-(4-cyanostyryl)benzene
CAS13001-38-2
Fluorescent brightener
Referencestereoisomer of
Chromotropic acid
CAS148-25-4
Azo dye intermediate
Safety Reference
Danger
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H335May cause respiratory irritation
Identifiers
IUPAC Name
disodium;4,5-dihydroxynaphthalene-2,7-disulfonate
InChIKey
AFGPCIMUGMJQPD-UHFFFAOYSA-L
SMILES
C1=C2C=C(C=C(C2=C(C=C1S(=O)(=O)[O-])O)O)S(=O)(=O)[O-].[Na+].[Na+]
Synonyms (19)
- CHROMOTROPATE
- Chromogen C
- Chromotropicacidsodiumsalt
- Disodium chromotropate
- Mordant Brown 7
- Sodium chromotropate