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Chongqing Huacai Chemical Co., Ltd
Chongqing Huacai Chemical Co., Ltd
22 YRS
Chongqing City, China
Main Products:
Indigo / Vat Blue 4B / Vat Green 3 / Violanthrone / Vat Violet 1 / Vat Black 16 / Vat Black 25 / Benzanthrone / 3-Bromobenzo[B]Phenalen-7-One / 1-Aminoanthraquinone
Chongqing City, China
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Vat Blue 4B / CAS 2475-31-2
OVERVIEW
Packaging
25 KG/Fibre Drum
Lead Time
14-30 days
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DESCRIPTION
Vat Blue 4B
CAS:2475-31-2
Molecular formula：C16H6Br4N2O2
Molecular weight：577.84700
Appearance:Dark blue powder (or particle)
Synopsis: Reduced bromoindigo is suitable for dyeing cotton, viscose fiber, silk, wool and printing of cotton cloth. It has good levelness and affinity. It is also used for the dyeing of Uygur cotton blended fabrics, the preparation of ink pigments and the coloring of plastics.
Structural formula:
Typical Properties
Summary
Reduced bromoindigo is suitable for dyeing cotton, viscose fiber, silk, wool and printing of cotton cloth. It has good levelness and affinity. It is also used for the dyeing of Uygur cotton blended fabrics, the preparation of ink pigments and the coloring of plastics.
CAS No.
2475-31-2
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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