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1-benzothiophene-2,3-dione

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Origin: China

Cas No: 493-57-2

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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Products Specification
Product Description

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CAS No.: 493-57-2 Formula: C8H4O2S Molecular Weight: 164.18100

Description

A useful synthetic intermediate for the preparation of novel antiinflammatory agents.

Basic Info

Chemical Name	1-benzothiophene-2,3-dione
Synonyms	Thionaphthenquinone; Benzothiophene 2,3-dione; 1-benzothiophen-2,3-dione; Thianaphthenequinone; Thioisatin; Thionaphthoquinone; 2,3-Thionaphthenequinone; 2,3-dihydrobenzo[b]thiophene-2,3-dione; benzo[b]thiophene-2,3-quinone; Benzo[b]thiophene-2,3-dione; Benzo(b)thiophene-2,3-dione;
CAS No.	493-57-2
Molecular Formula	C8H4O2S
Molecular Weight	164.18100
PSA	59.44000
LogP	1.50160

Properties

Density	1.479g/cm3
Boiling Point	247ºC at 760mmHg
Melting Point	119-121ºC
Flash Point	103ºC
Refractive Index	1.686
Vapor Pressure	0.0263mmHg at 25°C

Safety Info

Caution Statement	P280; P305 + P351 + P338
Hazard Declaration	H317; H318
Symbol	GHS05, GHS07
Signal Word	Danger

Synthesis Route

Oxalyl Chloride+thiophenol→1-benzothiophene-2,3-dione
Chloro-oxo-thioacetic acid S-phenyl ester→1-benzothiophene-2,3-dione
thiophenol→1-benzothiophene-2,3-dione

Precursor

thiophenol
Oxalyl Chloride
Chloro-oxo-thioacetic acid S-phenyl ester
thioindigo red C

Downstream Product

[1]benzothiolo[3,2-b]quinoxaline
1-benzothiophene
1-Benzothiophene-3-Carboxylic Acid
2-methylsulfanylbenzonitrile

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