5-Ethynyl-2-benzofuran-1,3-dione

Modify Date: 2025-08-25 19:52:38

5-Ethynyl-2-benzofuran-1,3-dione Structure
5-Ethynyl-2-benzofuran-1,3-dione structure
 Common Name 5-Ethynyl-2-benzofuran-1,3-dione
CAS Number 73819-76-8 Molecular Weight 172.137
Density 1.4±0.1 g/cm3 Boiling Point 352.5±25.0 °C at 760 mmHg
Molecular Formula C10H4O3 Melting Point 125ºC
MSDS N/A Flash Point 175.6±20.4 °C

 Names

Name 4-Ethynylphthalic Anhydride
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.4±0.1 g/cm3
Boiling Point 352.5±25.0 °C at 760 mmHg
Melting Point 125ºC
Molecular Formula C10H4O3
Molecular Weight 172.137
Flash Point 175.6±20.4 °C
Exact Mass 172.016037
PSA 43.37000
LogP 1.78
Vapour Pressure 0.0±0.8 mmHg at 25°C
Index of Refraction 1.625

 Safety Information

Hazard Codes Xi
Risk Phrases 36/37/38
Safety Phrases 26-36
HS Code 2932999099

 Customs

HS Code 2932999099
Summary 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

1,3-Isobenzofurandione, 5-ethynyl-
5-Ethynyl-2-benzofuran-1,3-dione
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Chemsrc provides 5-Ethynyl-2-benzofuran-1,3-dione(CAS#:73819-76-8) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of 5-Ethynyl-2-benzofuran-1,3-dione are included as well.>> amp version: 5-Ethynyl-2-benzofuran-1,3-dione

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