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

Names

[ CAS No. ]:
73819-76-8

[ Name ]:
5-Ethynyl-2-benzofuran-1,3-dione

[Synonym ]:
1,3-Isobenzofurandione, 5-ethynyl-
5-Ethynyl-2-benzofuran-1,3-dione

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

MSDS

Click to get detail MSDS

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%