benzo[b]thiophene-2,3-dione

CAS No.：493-57-2

Important Notice

This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
The purchaser must not use this product, or supply it to another party, for personal consumption, sports or fitness, weight loss, health supplements, food, or animal feed.

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benzo[b]thiophene-2,3-dione Basic information

Product Name:	benzo[b]thiophene-2,3-dione
Synonyms:	2,3-Dioxo-2,3-dihydrothionaphthene;2,3-Thionaphthenequinone;NSC 114478;benzo[b]thiophene-2,3-dione;2,3-Benzo[b]thiophenedione;2,3-Dihydro-1-benzothiophene-2,3-dione;Thianaphthenequinone;benzothiophene-2,3-quinone
CAS:	493-57-2
MF:	C8H4O2S
MW:	164.18
EINECS:
Product Categories:	Intermediates;Intermediates & Fine Chemicals;Pharmaceuticals;Sulfur & Selenium Compounds
Mol File:	493-57-2.mol

benzo[b]thiophene-2,3-dione Chemical Properties

Melting point	119-121°C
Boiling point	261.64°C (rough estimate)
density	1.3633 (rough estimate)
refractive index	1.5500 (estimate)
BRN	118077

Safety Information

Hazard Codes	Xn
Risk Statements	41-43-52
Safety Statements	26-36/37-39
WGK Germany	3

MSDS Information

benzo[b]thiophene-2,3-dione Usage And Synthesis

Chemical Properties	benzo[b]thiophene-2,3-dione is Orange Solid
Uses	benzo[b]thiophene-2,3-dione is a useful synthetic intermediate for the preparation of novel antiinflammatory agents.

benzo[b]thiophene-2,3-dione Preparation Products And Raw materials

Raw materials	Ethanethioic acid, 2-chloro-2-oxo-, S-phenyl ester-->(2E)-Δ2,2'-Bi[benzo[b]thiophene-3(2H)-one]-->Thiophenol-->Oxalyl chloride
Preparation Products	Ciba Violet 6R

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