3H-Indol-3-one,5-dromo-2-1,3-dihydro-3-oxo-2H-indol-2-ylidene-1,2-dihydro
3H-Indol-3-one,5-dromo-2-1,3-dihydro-3-oxo-2H-indol-2-ylidene-1,2-dihydro Basic information
- Product Name:
- 3H-Indol-3-one,5-dromo-2-1,3-dihydro-3-oxo-2H-indol-2-ylidene-1,2-dihydro
- Synonyms:
-
- 3H-Indol-3-one,5-dromo-2-1,3-dihydro-3-oxo-2H-indol-2-ylidene-1,2-dihydro
- MDW,C.I. Vat Blue 3,Indigo RN
- 5-Bromo-Δ2,2'(3H,3'H)-bi[1H-indole]-3,3'-dione
- 5-Bromo-Δ2,2'-bi(2H-indole)-3,3'(1H,1'H)-dione
- C.I.73055
- C.I.Vat Blue 3
- C.I.Vat Blue 34
- Yamada Brom Indigo R
- CAS:
- 6492-73-5
- MF:
- C16H9BrN2O2
- MW:
- 341.16
- Mol File:
- 6492-73-5.mol
3H-Indol-3-one,5-dromo-2-1,3-dihydro-3-oxo-2H-indol-2-ylidene-1,2-dihydro Chemical Properties
- Boiling point:
- 447.4±45.0 °C(Predicted)
- Density
- 1.695±0.06 g/cm3(Predicted)
- pka
- -4.15±0.20(Predicted)
3H-Indol-3-one,5-dromo-2-1,3-dihydro-3-oxo-2H-indol-2-ylidene-1,2-dihydro Usage And Synthesis
Preparation
Indigo in a sulphuric 1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid (FIAT 764 and 1313); (b) 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- or 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- white (C.I. 73001) and bromine in the presence of water response; (C) 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- and bromine in the presence of Pyridine or starch reaction, or in aqueous hydrogen bromide, hydrogen chloride or the presence of sulfuric acid reaction; (d) 5-Bromo-3-indolinone?and 3H-indol-3-one?condensation.
Properties and Applications
red light blue to red light navy blue. Dark blue powder. Soluble in toluene as blue, not soluble in ethanol. In concentrated sulfuric acid for dark olive green, blue precipitation after dilution. Alkaline reduction leuco for yellow; Acid reduction leuco colorless. Mainly used for cotton fabric dyeing, also can be used for cotton fabric direct printing, resist printing and discharge printing, but also can be used for wool dyeing.
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 4 | 2 | 3-4 | 4 | 3-4 | ||
3H-Indol-3-one,5-dromo-2-1,3-dihydro-3-oxo-2H-indol-2-ylidene-1,2-dihydro(6492-73-5)Related Product Information
- 4-(3-CARBAZOLYLAMINO)PHENOL
- C.I.Vat Blue 35
- N-[4-amino-3-(5,10-dihydro-5,10-dioxoanthra[2,3-d]thiazol-2-yl)-9,10-dihydro-9,10-dioxo-1-anthryl]benzamide
- Vat Blue 43
- Vat Blue 4
- 7,7'-Dibromo-5,5'-dichloro-Δ2,2'(3H,3'H)-bi[1H-indole]-3,3'-dione
- 5,7-dichloro-2-(5,7-dichloro-1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-3H-indol-3-one
- N-[4-amino-3-(5,10-dihydro-5,10-dioxoanthra[2,3-d]thiazol-2-yl)-9,10-dihydro-9,10-dioxo-1-anthryl]-3-(trifluoromethyl)benzamide
- Vat Blue 29
- 6-amino-10,12-dichloronaphth[2,3-c]acridine-5,8,14(13H)-trione
- 3,12,16,17-tetrachloroviolanthrene-5,10-dione
- 6,15-dimethoxybenzo[rst]phenanthro[10,1,2-cde]pentaphene-9,18-dione
- 3H-Indol-3-one, 5,7-dichloro-2-(4-chloro-1-oxo-2(1H)-naphthalenylidene)-1,2-dihydro-4,6-dimethyl-
- 5-Chloro-2-(5,7-dichloro-3-oxobenzo[b]thiophen-2(3H)-ylidene)-7-methoxy-4-methyl-1H-indol-3(2H)-one
- anthra[2,1,9-mna]benz[6,7]indazolo[2,3,4-fgh]acridine-5,10-dione
- Formaldehyde, reaction products with 6,15-dihydro-5,9,14,18-anthrazinetetrone
- 6-Amino-11-chloronaphth[2,3-c]acridine-5,8,14(13H)-trione
- Indigo