Benzo[b]thiophene-2,3-dione

Modify Date: 2025-08-25 00:17:30

Benzo[b]thiophene-2,3-dione Structure
Benzo[b]thiophene-2,3-dione structure
Common Name Benzo[b]thiophene-2,3-dione
CAS Number 493-57-2 Molecular Weight 164.18100
Density 1.479g/cm3 Boiling Point 247ºC at 760mmHg
Molecular Formula C8H4O2S Melting Point 119-121ºC
MSDS N/A Flash Point 103ºC

 Names

Name 1-benzothiophene-2,3-dione
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.479g/cm3
Boiling Point 247ºC at 760mmHg
Melting Point 119-121ºC
Molecular Formula C8H4O2S
Molecular Weight 164.18100
Flash Point 103ºC
Exact Mass 163.99300
PSA 59.44000
LogP 1.50160
Vapour Pressure 0.0263mmHg at 25°C
Index of Refraction 1.686
Storage condition 20°C

 Safety Information

Hazard Codes Xn
Risk Phrases 41-43-52
Safety Phrases 26-36/37-39

 Synthetic Route

 Synonyms

Benzothiophene 2,3-dione
Thionaphthenquinone
Thionaphthoquinone
benzo[b]thiophene-2,3-quinone
1-benzothiophen-2,3-dione
2,3-Thionaphthenequinone
Thioisatin
2,3-dihydrobenzo[b]thiophene-2,3-dione
Thianaphthenequinone
Benzo(b)thiophene-2,3-dione
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