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3H-Indol-3-one,5-dromo-2-1,3-dihydro-3-oxo-2H-indol-2-ylidene-1,2-dihydro

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3H-Indol-3-one,5-dromo-2-1,3-dihydro-3-oxo-2H-indol-2-ylidene-1,2-dihydro Suppliers list
Company Name: Hubei Jusheng Technology Co.,Ltd.
Tel: 18871490254
Email: linda@hubeijusheng.com
Products Intro: Product Name:(2Z)-5-bromo-2-(3-oxo-1H-indol-2-ylidene)-1H-indol-3-one
CAS:6492-73-5
Purity:0.99 Package:5KG;1KG Remarks:C16H9BrN2O2
Company Name: Shaanxi Didu New Materials Co. Ltd
Tel: +86-89586680 +86-13289823923
Email: 1026@dideu.com
Products Intro: Product Name:c.i. Vat blue 3;6492-73-5
CAS:6492-73-5
Purity:0.99 Package:25KG,200L
Company Name: Chempro Tech Co., Ltd.   
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Products Intro: Product Name:(E)-5-bromo-[2,2,-biindolinylidene]-3,3,-dione
CAS:6492-73-5
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
EINECS:
Product Categories:
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 Structure
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)
Safety Information
MSDS Information
3H-Indol-3-one,5-dromo-2-1,3-dihydro-3-oxo-2H-indol-2-ylidene-1,2-dihydro Usage And Synthesis
PreparationIndigo 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 Applicationsred 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 Preparation Products And Raw materials
Raw materials5-BROMO-1,2-DIHYDRO-INDOL-3-ONE-->Vat Blue 4B-->Indigo-->Bromaminic acid-->Pyridine
Preparation Products[2,2'-Bi-1H-indole]-3,3'-diol, 5-bromo-, bis(hydrogen sulfate) (ester), disodium salt
Tag: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