C.I.Vat Blue 35

C.I.Vat Blue 35 Structure
CAS No.
84-40-2
Chemical Name:
C.I.Vat Blue 35
Synonyms
C.I.73060;Vat Blue 35;C.I.Vat Blue 35;5,5'-Dibromoindigo;Brilliant Indigo KMR;Pharmanthrene Blue R;Mitsui Tsuya Indigo BR;C.I.Vat Blue 35:C.I.73060;(2E)-5-bromo-2-(5-bromo-3-oxo-1H-indol-2-ylidene)-1H-indol-3-one;(2Z)-5-bromo-2-(5-bromo-3-oxo-1H-indol-2-ylidene)-1H-indol-3-one
CBNumber:
CB11453064
Molecular Formula:
C16H8Br2N2O2
Molecular Weight:
420.05
MOL File:
84-40-2.mol

C.I.Vat Blue 35 Properties

Melting point >300 °C
Boiling point 492.0±45.0 °C(Predicted)
Density 1.932±0.06 g/cm3(Predicted)
pka -5.01±0.20(Predicted)
EPA Substance Registry System 3H-Indol-3-one, 5-bromo-2-(5-bromo-1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- (84-40-2)

C.I.Vat Blue 35 Chemical Properties,Uses,Production

Preparation

(a) 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- in sulfuric 1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid in two (FIAT 764 and 1313); (b) 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- in the boiling Nitrobenzene with Bromine bromination.

Properties and Applications

dark blue to navy blue. Aquamarine blue powder. Insoluble in Etanol. In concentrated sulfuric acid to blue light green, blue precipitation after dilution. Alkaline reduction leuco for yellow; Acid reduction leuco for pale yellow. The product of the cotton fiber to direct the gender is tall, good levelness. Used for cotton fabric direct printing, resist printing, prevent discharge and coloring discharge. Also can be used for silk and wool dyeing of wool directness high, good levelness.

Standard Ironing Fastness Chlorine bleach Light Fastness Mercerized Oxygen bleach Soaping
Fading Stain
ISO 3-4 2-3 4-5 1 3-4
AATCC 5 1 4-5 3 3-4

C.I.Vat Blue 35 Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 4)Suppliers
Supplier Tel Country ProdList Advantage Inquiry
ShenZhen Trendseen Biological Technology Co.,Ltd. 13417589054 China 11681 58 Inquiry
ShenZhen Trendseen Biological Technology Co.,Ltd. 13417589054 13417589054 China 8941 58 Inquiry
MolMall Sarl +41 21 802 18 34 Switzerland 6882 58 Inquiry
5,5'-Dibromoindigo Brilliant Indigo KMR C.I.73060 C.I.Vat Blue 35 Mitsui Tsuya Indigo BR Pharmanthrene Blue R (2Z)-5-bromo-2-(5-bromo-3-oxo-1H-indol-2-ylidene)-1H-indol-3-one (2E)-5-bromo-2-(5-bromo-3-oxo-1H-indol-2-ylidene)-1H-indol-3-one 3H-Indol-3-one, 5-bromo-2-(5-bromo-1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- C.I.Vat Blue 35:C.I.73060 Vat Blue 35 84-40-2