ChemicalBook >> CAS DataBase List >>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

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

MDL Number:

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-indolinoneand 3H-indol-3-onecondensation.

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( 2)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Shaanxi Didu New Materials Co. Ltd	+86-86-17392712697 +8617792793228	1069@dideu.com	China	8662	58

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

1of4

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

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