1-Naphthol-8-sulfonic acid is an organic compound containing a naphthalene ring substituted with a hydroxyl group and a sulfonic acid group. It is used primarily as an intermediate in the production of dyes and 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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8-amino-1,3,6-naphthalenetrisulfonic acid
Dye intermediate
8-Hydroxynaphthalene-1,6-disulfonic acid
Dye intermediate for naphthol sulfonic acids
2,7-Naphthalenedisulfonic acid, 4-(benzoylamino)-5-hydroxy-
dye intermediate
1-naphthol-4,8-disulfonic acid
naphthol disulfonic acid intermediate for dyes
The international HS code for 1-Naphthol-8-sulfonic acid (CAS 117-22-6) is 2908.99.
2908.99
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.
8-hydroxynaphthalene-1-sulfonic acid
ZPLBZGGKAUXTRT-UHFFFAOYSA-N
C1=CC2=C(C(=C1)O)C(=CC=C2)S(=O)(=O)O
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