5,7-dichloro-1,2-dihydro-2-(1-oxonaphtho[2,1-b]thien-2(1H)-ylidene)-3H-indol-3-one

5,7-dichloro-1,2-dihydro-2-(1-oxonaphtho[2,1-b]thien-2(1H)-ylidene)-3H-indol-3-one structure

CAS No.: 6424-67-5

Chemical Name:: 5,7-dichloro-1,2-dihydro-2-(1-oxonaphtho[2,1-b]thien-2(1H)-ylidene)-3H-indol-3-one

Synonyms: Vat Brown 42;Vat brown 42 (C.I. 73665);C.I.Vat Brown 42:C.I.73665;5,7-dichloro-1,2-dihydro-2-(1-oxonaphtho[2,1-b]thien-2(1H)-ylidene)-3H-indol-3-one;3H-Indol-3-one, 5,7-dichloro-1,2-dihydro-2-(1-oxonaphtho[2,1-b]thiophen-2(1H)-ylidene)-

CBNumber:: CB1933705

Molecular Formula:: C20H9Cl2NO2S

Molecular Weight:: 398.26

MDL Number:

MOL File:: 6424-67-5.mol

Last updated:2023-07-12 17:12:53

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5,7-dichloro-1,2-dihydro-2-(1-oxonaphtho[2,1-b]thien-2(1H)-ylidene)-3H-indol-3-one Properties

Boiling point	549.9±50.0 °C(Predicted)
Density	1.615±0.06 g/cm3(Predicted)
pka	-7.42±0.20(Predicted)

5,7-dichloro-1,2-dihydro-2-(1-oxonaphtho[2,1-b]thien-2(1H)-ylidene)-3H-indol-3-one Chemical Properties,Uses,Production

Preparation

Naphtho[2,1-b]thiophen-1(2H)-one with 2,2,5,7-Tetrachloro-3-indolinone?condensation.

Properties and Applications

brown. Brown powder. In concentrated sulfuric acid to red light brown, dilution after brown. Alkaline reduction leuco for yellow orange; Acid reduction leuco for yellow. To cellulose fibre substantivity high, good levelness. Used for cotton fabric direct dyeing, reserving and coloring discharge, also can be used for silk and wool dyeing.

Standard	Ironing Fastness	Chlorine bleach	Light Fastness	Mercerized	Oxygen bleach	Soaping
						Fading	Stain
ISO	4	4-5	6	4	5

5,7-dichloro-1,2-dihydro-2-(1-oxonaphtho[2,1-b]thien-2(1H)-ylidene)-3H-indol-3-one Preparation Products And Raw materials

Raw materials

naphtho[2,1-b]thiophen-1(2H)-one 2,2,5,7-tetrachloro-3-indolinone

Preparation Products

6424-67-5(5,7-dichloro-1,2-dihydro-2-(1-oxonaphtho[2,1-b]thien-2(1H)-ylidene)-3H-indol-3-one )Related Search:

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5,7-dichloro-1,2-dihydro-2-(1-oxonaphtho[2,1-b]thien-2(1H)-ylidene)-3H-indol-3-one Vat brown 42 (C.I. 73665) 3H-Indol-3-one, 5,7-dichloro-1,2-dihydro-2-(1-oxonaphtho[2,1-b]thiophen-2(1H)-ylidene)- C.I.Vat Brown 42:C.I.73665 Vat Brown 42 6424-67-5 C20H9Cl2NO2S