C11H8O3
188.18 g/mol
Dye & PigmentDanger
6-Hydroxy-2-naphthoic acid
CAS16712-64-4EC240-759-7
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
Precursor to azo dyes and pigments
6-Hydroxy-2-naphthoic acid is an organic compound that serves as a precursor in the production of azo dyes and pigments. It is one of several hydroxynaphthoic acids and features both a carboxylic acid and a hydroxyl group on an aromatic ring system.
precursor to azo dyesprecursor to azo pigments
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
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ReferenceSame Category
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Solvent blue dye
Safety Reference
Danger
H302Harmful if swallowed
H318Causes serious eye damage
H335May cause respiratory irritation
H412Harmful to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for 6-Hydroxy-2-naphthoic acid (CAS 16712-64-4) is 2918.29.
HS code (international, 6-digit)
2918.29
EU CN code (8-digit)
2918 29 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
6-hydroxynaphthalene-2-carboxylic acid
InChIKey
KAUQJMHLAFIZDU-UHFFFAOYSA-N
SMILES
C1=CC2=C(C=CC(=C2)O)C=C1C(=O)O
Synonyms (20)
- HNCA
- 2-Naphthoic acid, 6-hydroxy-
- 2-Naphthol-6-carboxylic Acid
- 2-hydroxy-6-naphthoic acid
- 6-Carboxy-2-naphthol
- 6-Hydroxy-2-naphthoic acid
- 6-Hydroxy-2-napthoic acid
- 6-Hydroxy-beta-naphthoic acid
- 6-hydroxy-2-naphtoic acid
- HYDROXY-2-NAPHTHOIC ACID, 6-
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