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Vat Blue 4b

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Vat Blue 4B / CAS : 2475-31-2

Appearance Dark blue powder UN 0.0
HS 29339900 DG Class 0.0
Synonyms Tetrabromoindigo; Indigo 4B; Tetra Blue 2B; Bromindigo 2Bd; Durindone Blue 4B; Ciba Blue 2B; Bromindigo; 5,5',7,7'-Tetrabromoindigo; Ciba Brilliant Blue Bs; Basf Brilliant Indigo; Pigment Organic Indigo Blue Bromindigo Einecs; Arlanon Blue 2B; Convat Blue E; Kambanthrene Bndigo 4B
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Properties

Summary

Formula
C16H6Br4N2O2
Molecular Mass
577.84700
Exact Mass
573.71600
PSA
58.20000
Logp
6.14080
IUPAC
5,7-dibromo-2-(5,7-dibromo-3-hydroxy-1H-indol-2-yl)indol-3-one
SMILES
C1=C(C=C(C2=C1C(=C(N2)C3=NC4=C(C3=O)C=C(C=C4Br)Br)O)Br)Br

Attribute classification

Matter Classification
organic
Category
Dyestuffs and Pigments > Vat Dyes

Chemical and Physical Properties

Melting Point
563.4±50.0 °C
Density
2.313g/cm3
Boiling Point
563.4ºC at 760mmHg
Flash Point
294.5ºC
Appearance
Dark blue powder

Export information

HS Code
29339900
Export Rebate
13%
UN No.
0.0
DG-Class
0.0

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