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ChemicalBook > Product Catalog >Dyes and Pigments >dye >Vat Dyes >Vat Blue 4B

Vat Blue 4B

Vat Blue 4B Structure
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
Molecular Weight:
577.85
MOL File:
2475-31-2.mol
Modify Date:
2024/5/11 20:10:50
Request For Quotation

Vat Blue 4B Properties

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)

SAFETY

Risk and Safety Statements

RTECS  NM3259100

Vat Blue 4B Chemical Properties,Uses,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

Indigo Indigo

Preparation Products

disodium 5,5',7,7'-tetrabromo[2,2'-bi-1H-indole]-3,3'-diyl disulphate 3H-Indol-3-one,5-dromo-2-1,3-dihydro-3-oxo-2H-indol-2-ylidene-1,2-dihydro

Vat Blue 4B Suppliers

Global( 126)Suppliers
Supplier Tel Country ProdList Advantage Inquiry
Jagson Colorchem Limited +91-9879484214 +91-9879484214 Gujarat, India 318 58 Inquiry
Vipul Organics Ltd +91-2266139999 +91-2266139999 Maharashtra, India 277 58 Inquiry
Akik Dye Chem +91-7925321500 +91-7925321400 Gujarat, India 91 58 Inquiry
Vikram And Company +91-2226285989 +91-9821517722 Maharashtra, India 197 58 Inquiry
Sunflower Export Import Pvt. Ltd. +91-281-245 2661 New Delhi, India 56 30 Inquiry
TCI Chemicals (India) Pvt. Ltd. 1800 425 7889 New Delhi, India 6778 58 Inquiry
Jagson Colorchem Limited 91-79-65458813 Gujarat, India 93 58 Inquiry
Mahesh (India) 91-22-26861581 Maharashtra, India 52 58 Inquiry
Vikram & Co 91-22-26285989 Maharashtra, India 9 58 Inquiry
Vipul Organics Ltd. 91-22-66139999 Maharashtra, India 63 58 Inquiry
Supplier Advantage
Jagson Colorchem Limited 58
Vipul Organics Ltd 58
Akik Dye Chem 58
Vikram And Company 58
Sunflower Export Import Pvt. Ltd. 30
TCI Chemicals (India) Pvt. Ltd. 58
Jagson Colorchem Limited 58
Mahesh (India) 58
Vikram & Co 58
Vipul Organics Ltd. 58

2475-31-2(Vat Blue 4B)Related Search:

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