1H-2-Benzopyran-1,3,4-trione

Names

[ Name ]:
1H-2-Benzopyran-1,3,4-trione

[Synonym ]:
phthalonic anhydride
isochroman-1,3,4-trione
Isochroman-1,3,4-trion
1H-2-Benzopyran-1,3,4-trione
Phthalonsaeure-anhydrid

Chemical & Physical Properties

[ Density]:
1.507g/cm3

[ Boiling Point ]:
338.3ºC at 760 mmHg

[ Molecular Formula ]:
C₉H₄O₄

[ Molecular Weight ]:
176.12600

[ Flash Point ]:
153.9ºC

[ Exact Mass ]:
176.01100

[ PSA ]:
60.44000

[ LogP ]:
0.56630

[ Index of Refraction ]:
1.608

Safety Information

[ HS Code ]:
2932999099

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

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%