Sourcing DIRECT RED 23?
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Trisodium 4-((1-hydroxy-6-((((5-hydroxy-6-(phenylazo)-7-sulphonato-2-naphthyl)amino)carbonyl)amino)-3-sulphonato-2-naphthyl)azo)benzoate
Direct dye for textiles
Sourcing DIRECT RED 23?
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Direct Red 23 is a bisazo dye used as a direct dye for textile applications. It is a sodium salt with a complex aromatic structure containing sulfonate groups, which confer water solubility.
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.
The international HS code for DIRECT RED 23 (CAS 3441-14-3) is 3204.14.
3204.14
3204 14 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
disodium;7-[[6-[(4-acetamidophenyl)diazenyl]-5-hydroxy-7-sulfonatonaphthalen-2-yl]carbamoylamino]-4-hydroxy-3-phenyldiazenylnaphthalene-2-sulfonate
NLMHXPDMNXMQBY-UHFFFAOYSA-L
CC(=O)NC1=CC=C(C=C1)N=NC2=C(C=C3C=C(C=CC3=C2O)NC(=O)NC4=CC5=CC(=C(C(=C5C=C4)O)N=NC6=CC=CC=C6)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]