C10H8NNaO3S
245.23 g/mol
Dye & PigmentWarning
Sodium naphthionate
CAS130-13-2EC204-975-5
Category
Dye & Pigment
Compound Class
Amine
Primary Use
naphthalene sulfonate dye intermediate
Sodium naphthionate is the sodium salt of 4-aminonaphthalene-1-sulfonic acid, commonly used as an intermediate in the production of naphthalene sulfonate dyes.
naphthalene sulfonate dye intermediate
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
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
ReferenceSame Category
1,4-Bis(4-cyanostyryl)benzene
CAS13001-40-6
fluorescent brightener
Referencestereoisomer of
Naphthionic acid
CAS84-86-6
Naphthalene sulfonic acid dye intermediate
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
Customs Tariff Classification
The international HS code for Sodium naphthionate (CAS 130-13-2) is 2921.45.
HS code (international, 6-digit)
2921.45
EU CN code (8-digit)
2921 45 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-aminonaphthalene-1-sulfonate
InChIKey
JWSRMCCRAJUMLX-UHFFFAOYSA-M
SMILES
C1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)[O-])N.[Na+]
Synonyms (19)
- Naphthemol
- Naphthionic acid sodium salt
- Naphthionine
- Natriumnaphthionat
- Sodium naphthionate
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