Direct Blue 6 is a synthetic azo dye primarily used as a direct dye for textile applications. It consists of a tetrasodium salt of a complex sulfonated naphthalene derivative and has been noted by an independent scientific committee as a compound that can cause cancer.
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CAS 2602-46-2
D&C Red 33
Red azo dye for cosmetics
Aluminum, tris[5-amino-4-hydroxy-3-(phenylazo)-2,7-naphthalenedisulfonato(2-)]di-
aluminum lake pigment
Direct blue 218
Direct dye for cellulose and textiles
Spadns
chromogenic indicator for metal and fluoride ions
Direct black 19
Direct dye for textiles
Sirius Red F3B
Direct dye for textiles
Direct Orange S
Direct dye for textiles
Direct Red 31
Direct dye for textiles
The international HS code for DIRECT BLUE 6 (CAS 2602-46-2) 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.
tetrasodium;5-amino-3-[[4-[4-[(8-amino-1-hydroxy-3,6-disulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]-4-hydroxynaphthalene-2,7-disulfonate
MPCYPRXRVWZKGF-UHFFFAOYSA-J
C1=CC(=CC=C1C2=CC=C(C=C2)N=NC3=C(C4=C(C=C(C=C4C=C3S(=O)(=O)[O-])S(=O)(=O)[O-])N)O)N=NC5=C(C6=C(C=C(C=C6C=C5S(=O)(=O)[O-])S(=O)(=O)[O-])N)O.[Na+].[Na+].[Na+].[Na+]