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Home/Compounds/Dye & Pigment/2-naphthol-3,6,8-trisulfonic acid
C10H8O10S3
384.4 g/mol
Dye & Pigment

2-Naphthol-3,6,8-trisulfonic acid

CAS6259-66-1EC228-407-0
Category
Dye & Pigment
Compound Class
Organic Acid
Primary Use
Dye intermediate

2-Naphthol-3,6,8-trisulfonic acid, also known as This compound, is a sulfonated naphthol compound with three sulfonic acid groups and a hydroxyl group. It is used as a dye intermediate, serving as a building block in the synthesis of various dyes.

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

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intermediate for dye and pigment synthesis

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Photographic color developer intermediate

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Photographic color developer

ReferenceSame Category

Fluorescein dichloride

CAS630-88-6

dye and pigment intermediate

Customs Tariff Classification

The international HS code for 2-Naphthol-3,6,8-trisulfonic acid (CAS 6259-66-1) 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

7-hydroxynaphthalene-1,3,6-trisulfonic acid

InChIKey

ANYNWDCUWOSEFH-UHFFFAOYSA-N

SMILES

C1=C2C=C(C(=CC2=C(C=C1S(=O)(=O)O)S(=O)(=O)O)O)S(=O)(=O)O

Synonyms (7)

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