C18H18N4O6
386.4 g/mol
Dye & Pigment
Butanamide, 2-((4-methoxy-2-nitrophenyl)azo)-N-(2-methoxyphenyl)-3-oxo-
CAS6528-34-3EC229-419-9
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
Pigment for inks and coatings
This compound is a synthetic azo pigment used primarily for coloring inks and coatings. It is listed under EU regulations for restricted substances in tattoo inks and permanent makeup.
Pigment for inks and coatingsColorant for tattoo inks (restricted concentration)
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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Related Compounds
SimilarStructure SimilarSimilarity 0.73
2-[(E)-(2-Methoxy-4-nitrophenyl)diazenyl]-N-(2-methoxyphenyl)-3-oxobutanamide
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ReferenceSame Category
Trisodium 4-((1-hydroxy-6-((((5-hydroxy-6-(phenylazo)-7-sulphonato-2-naphthyl)amino)carbonyl)amino)-3-sulphonato-2-naphthyl)azo)benzoate
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Direct dye for textiles
ReferenceSame Category
Sodium 4-amino-6-chlorotoluene-3-sulphonate
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dye intermediate
Referencesame scaffold
2-[(E)-(4-Chloro-2-nitrophényl)diazényl]-N-(2-chlorophényl)-3-oxobutanamide
CAS6486-23-3
yellow pigment for industrial use
Referencesame scaffold
2-[(E)-(4-Méthyl-2-nitrophényl)diazényl]-3-oxo-N-phénylbutanamide
CAS2512-29-0
Organic pigment for paints and inks
Safety Reference
H411Toxic to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for Butanamide, 2-((4-methoxy-2-nitrophenyl)azo)-N-(2-methoxyphenyl)-3-oxo- (CAS 6528-34-3) is 3204.17.
HS code (international, 6-digit)
3204.17
EU CN code (8-digit)
3204 17 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
2-[(4-methoxy-2-nitrophenyl)diazenyl]-N-(2-methoxyphenyl)-3-oxobutanamide
InChIKey
UFORAEIAYCSGCR-UHFFFAOYSA-N
SMILES
CC(=O)C(C(=O)NC1=CC=CC=C1OC)N=NC2=C(C=C(C=C2)OC)[N+](=O)[O-]
Synonyms (8)
- Permanent Yellow Rn
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