C. I.
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.
Sourcing C.I. DIRECT BLUE 53?
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2-[(E)-{1,3-Dioxo-1-[(2-oxo-2,3-dihydro-1H-benzimidazol-5-yl)amino]-2-butanyl}diazenyl]benzoic acid
Pigment for plastics
Direct yellow 50
direct dye for textiles
Vat Green 3
Vat dye for textiles
Cobalt(II) phthalocyanine
Pigment and dye intermediate
Trypan blue sodium
biological stain and dye
Direct blue 15
substantive dye for cotton
Direct Blue 6
Direct dye for textiles
Direct blue 218
Direct dye for cellulose and textiles
The international HS code for C.I. DIRECT BLUE 53 (CAS 314-13-6) is 2927.00.
2927.00
2927 00 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;4-amino-6-[[4-[4-[(8-amino-1-hydroxy-5,7-disulfonatonaphthalen-2-yl)diazenyl]-3-methylphenyl]-2-methylphenyl]diazenyl]-5-hydroxynaphthalene-1,3-disulfonate
ATNOAWAQFYGAOY-UHFFFAOYSA-J
CC1=C(C=CC(=C1)C2=CC(=C(C=C2)N=NC3=C(C4=C(C=C3)C(=CC(=C4N)S(=O)(=O)[O-])S(=O)(=O)[O-])O)C)N=NC5=C(C6=C(C=C5)C(=CC(=C6N)S(=O)(=O)[O-])S(=O)(=O)[O-])O.[Na+].[Na+].[Na+].[Na+]
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