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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 Structure
CAS No.
6492-73-5
Chemical Name:
3H-Indol-3-one,5-dromo-2-1,3-dihydro-3-oxo-2H-indol-2-ylidene-1,2-dihydro
Synonyms
C.I.73055;Vat Blue 3;Vat Blue 34;C.I.Vat Blue 3;C.I.Vat Blue 34;Yamada Brom Indigo R;C.I.Vat Blue 3:C.I.73055;C.I.Vat Blue 34:C.I.73055;MDW,C.I. Vat Blue 3,Indigo RN;(E)-5-bromo-[2,2,-biindolinylidene]-3,3,-dione
CBNumber:
CB41453959
Molecular Formula:
C16H9BrN2O2
Molecular Weight:
341.16
MOL File:
6492-73-5.mol
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3H-Indol-3-one,5-dromo-2-1,3-dihydro-3-oxo-2H-indol-2-ylidene-1,2-dihydro 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 Chemical Properties,Uses,Production

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 Preparation Products And Raw materials

Raw materials

5-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

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

Global( 3)Suppliers
Supplier Tel Country ProdList Advantage Inquiry
Shaanxi Didu New Materials Co. Ltd +86-89586680 +86-13289823923 China 9003 58 Inquiry
Supplier Advantage
Shaanxi Didu New Materials Co. Ltd 58

6492-73-5(3H-Indol-3-one,5-dromo-2-1,3-dihydro-3-oxo-2H-indol-2-ylidene-1,2-dihydro)Related Search:

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
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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 (E)-5-bromo-[2,2,-biindolinylidene]-3,3,-dione (2Z)-5-bromo-2-(3-oxo-1H-indol-2-ylidene)-1H-indol-3-one 3H-Indol-3-one, 5-bromo-2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- C.I.Vat Blue 34:C.I.73055 Vat Blue 34 C.I.Vat Blue 3:C.I.73055 Vat Blue 3 6492-73-5