ChemicalBook > CAS DataBase List > Vat Blue 4B

Vat Blue 4B

Product Name
Vat Blue 4B
CAS No.
2475-31-2
Chemical Name
Vat Blue 4B
Synonyms
04BS;indigo4b;vatblue5;CI 73065;Indigo 4B;vatblue4b;CIBA BLUE;Bromindigo;tinablue2b;Vat Blue 5
CBNumber
CB1364318
Molecular Formula
C16H6Br4N2O2
Formula Weight
577.85
MOL File
2475-31-2.mol
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Vat Blue 4B Property

Boiling point:
563.4±50.0 °C(Predicted)
Density 
2.5583 (rough estimate)
refractive index 
1.6300 (estimate)
Colour Index 
73065
pka
-7.15±0.20(Predicted)
CAS DataBase Reference
2475-31-2(CAS DataBase Reference)
NIST Chemistry Reference
c.i. Vat blue 5(2475-31-2)
EPA Substance Registry System
3H-Indol-3-one, 5,7-dibromo-2-(5,7-dibromo-1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- (2475-31-2)
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Safety

RTECS 
NM3259100
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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

TRC
Product number
C535730
Product name
CibaBlue2B
Packaging
250mg
Price
$85
Updated
2021/12/16
TRC
Product number
C535730
Product name
CibaBlue2B
Packaging
500mg
Price
$150
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
DYE0000193
Product name
CIBA BLUE 2B
Purity
95.00%
Packaging
25G
Price
$162.75
Updated
2021/12/16
AHH
Product number
MT-06742
Product name
Cibablue2B
Purity
98%
Packaging
500g
Price
$312
Updated
2021/12/16
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Vat Blue 4B Chemical Properties,Usage,Production

Uses

Ciba Blue 2B (CAS# 2475-31-2) is a halogenated indigo dye and pollutant contributing 1,3,6,8-tetrabromocarbazole and some other halogenated carbazoles to the environment.

Preparation

(a) and Acetic anhydride in the presence of Sodium acetate trihydrate in Acetic acid glacial will 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-? ?tetrabromide?(FIAT764); (b) in the boiling Nitrobenzene with Bromine will 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- four bromination, (C) 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- in Chlorosulfonic acid (GP 225227) or in Sulfuryl chloride (GP 229304) and bromine reaction.

Properties and Applications

blue. Dark blue powder. Etanol and insoluble in water, soluble in Xylene, Nitrobenzene and 1, 2, 3, 4 – Tetrahydronaphthalene. Alkaline reduction leuco for yellow; Acid reduction leuco for pale yellow. In concentrated sulfuric acid to blue light green, diluted into blue, and the emergence of precipitation. Used for cotton of jig dyeing and yarn dyeing, dyeing hair blue cloth color turquoise blue. Is the important dye printing, can direct printing, also can discharge printing and resist printing. Can also be used for viscose, silk and wool dyeing, levelness and affinity are good. Can be processed into organic pigment

Standard Ironing Fastness Chlorine bleach Light Fastness Mercerized Oxygen bleach Soaping
Fading Stain
ISO 5 2 4-5 4 3-4 4-5 5
AATCC 5 2 4-5 3-4 4

Vat Blue 4B Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from Vat Blue 4B manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Vat Blue 4B 2475-31-2
Price
US $200.00-95.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-04-22
Hebei Yanxi Chemical Co., Ltd.
Product
Vat Blue 4B 2475-31-2
Price
US $20.00-10.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
10 tons
Release date
2023-10-19
Hebei Mojin Biotechnology Co., Ltd
Product
Vat Blue 4B 2475-31-2
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
50000KG/month
Release date
2023-10-10

2475-31-2, Vat Blue 4BRelated Search:


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