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

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

Basic information Safety Supplier Related

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

Product Name:

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

Synonyms:

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

CAS:

6424-67-5

MF:

C20H9Cl2NO2S

MW:

398.26

EINECS:

229-184-2

Mol File:

6424-67-5.mol

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

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

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

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 Supplier

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