C10H6K2O7S2
380.5 g/mol
Pharmaceutical IntermediateWarning
Dipotassium 7-hydroxynaphthalene-1,3-disulphonate
CAS842-18-2EC237-577-5
Category
Pharmaceutical Intermediate
Compound Class
Aromatic
Primary Use
Pharmaceutical Intermediate
Dipotassium 7-hydroxynaphthalene-1,3-disulphonate is a chemical compound used as a dye intermediate, specifically for naphthol sulfonate dyes. It is a salt form of the corresponding disulfonic acid, featuring two sulfonate groups and a hydroxyl group on a naphthalene ring.
Dye intermediate for naphthol sulfonate production
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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pharmaceutical intermediate
Referencestereoisomer of
2-naphthol-6,8-disulfonic acid
CAS118-32-1
Dye intermediate for azo dyes
Safety Reference
Warning
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for Dipotassium 7-hydroxynaphthalene-1,3-disulphonate (CAS 842-18-2) is 2908.99.
HS code (international, 6-digit)
2908.99
EU CN code (8-digit)
2908 99 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
dipotassium;7-hydroxynaphthalene-1,3-disulfonate
InChIKey
LKDMVWRBMGEEGR-UHFFFAOYSA-L
SMILES
C1=CC(=CC2=C(C=C(C=C21)S(=O)(=O)[O-])S(=O)(=O)[O-])O.[K+].[K+]
Synonyms (14)
- G Acid Dipotassium Salt
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