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5,7-dichloro-2-(6-chloro-4-methyl-3-oxobenzo[b]thien-2(3H)-ylidene)-4-methylbenzo[b]thiophene-3(2H)-one

Basic information Safety Supplier Related

5,7-dichloro-2-(6-chloro-4-methyl-3-oxobenzo[b]thien-2(3H)-ylidene)-4-methylbenzo[b]thiophene-3(2H)-one Basic information

Product Name:
5,7-dichloro-2-(6-chloro-4-methyl-3-oxobenzo[b]thien-2(3H)-ylidene)-4-methylbenzo[b]thiophene-3(2H)-one
Synonyms:
  • 5,7-dichloro-2-(6-chloro-4-methyl-3-oxobenzo[b]thien-2(3H)-ylidene)-4-methylbenzo[b]thiophene-3(2H)-one
  • Vat red 2 (C.I. 73365)
  • Benzo[b]thiophen-3(2H)-one, 5,7-dichloro-2-(6-chloro- 4-methyl-3-oxobenzo[b]thien-2(3H)-ylidene)-4-methyl -
  • C.I.73365
  • C.I.Disperse Red 199
  • C.I.Vat Red 2
  • Helanthrene 3B
  • Mikethrene Brilliant Pink 3B
CAS:
6371-23-9
MF:
C18H9Cl3O2S2
MW:
427.75
EINECS:
228-895-5
Product Categories:
  • Organics
Mol File:
6371-23-9.mol
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5,7-dichloro-2-(6-chloro-4-methyl-3-oxobenzo[b]thien-2(3H)-ylidene)-4-methylbenzo[b]thiophene-3(2H)-one Chemical Properties

Boiling point:
552.2±50.0 °C(Predicted)
Density 
1.643±0.06 g/cm3(Predicted)
EPA Substance Registry System
Benzo[b]thiophen-3(2H)-one, 5,7-dichloro-2-(6-chloro-4-methyl-3-oxobenzo[b]thien-2(3H)-ylidene)-4-methyl- (6371-23-9)
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5,7-dichloro-2-(6-chloro-4-methyl-3-oxobenzo[b]thien-2(3H)-ylidene)-4-methylbenzo[b]thiophene-3(2H)-one Usage And Synthesis

Preparation

6-Bromo-4-methylbenzo[b]thiophen-3(2H)-one and 5,7-Dichloro-4-methyl-3-thianaphthenone?condensation.

Properties and Applications

bright pink to red blue light. In insurance powder in alkaline solution for yellow, acidic solution colorless. And C.I.Vat Red 2 the same chemical structure.

Standard Ironing Fastness Light Fastness Persperation Fastness Washing Fastness
Fading Stain Fading Stain Fading Stain
ISO 5 4 6-7 5 5 4-5 5

5,7-dichloro-2-(6-chloro-4-methyl-3-oxobenzo[b]thien-2(3H)-ylidene)-4-methylbenzo[b]thiophene-3(2H)-oneSupplier

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