Safety Reference
H412Harmful to aquatic life with long lasting effects
Sourcing Direct Black 168?
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Direct Red 227
direct dye for textiles
Sourcing Direct Black 168?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Direct Black 168 is an anionic azo dye commonly used for direct dyeing of textiles, particularly cellulosic fibers. It features a complex aromatic structure with multiple sulfonate groups and azo linkages, contributing to its affinity for fiber substrates.
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 Black 168 (CAS 85631-88-5) 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.
trisodium;2-[4-[(2-amino-4-oxidophenyl)diazenyl]anilino]-5-[(1-amino-8-oxido-7-phenyldiazenyl-3,6-disulfonaphthalen-2-yl)diazenyl]benzenesulfonate
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C1=CC=C(C=C1)N=NC2=C(C3=C(C(=C(C=C3C=C2S(=O)(=O)O)S(=O)(=O)O)N=NC4=CC(=C(C=C4)NC5=CC=C(C=C5)N=NC6=C(C=C(C=C6)[O-])N)S(=O)(=O)[O-])N)[O-].[Na+].[Na+].[Na+]