C.I.Vat Blue 35
- Product Name
- C.I.Vat Blue 35
- 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
- Formula Weight
- 420.05
- MOL File
- 84-40-2.mol
C.I.Vat Blue 35 Property
- 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)
N-Bromosuccinimide Price
- Product number
- PH002016
- Product name
- 5,5''-Dibromoindigo
- Purity
- AldrichCPR
- Packaging
- 1MG
- Price
- $172
- Updated
- 2023/06/20
- Product number
- HCH0134752
- Product name
- 5,5'-DIBROMOINDIGO
- Purity
- 95.00%
- Packaging
- 5MG
- Price
- $497.62
- Updated
- 2021/12/16
C.I.Vat Blue 35 Chemical Properties,Usage,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
C.I.Vat Blue 35 Suppliers
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