3,4-difluorofuran-2,5-dione

Names

[ CAS No. ]:
669-78-3

[ Name ]:
3,4-difluorofuran-2,5-dione

[Synonym ]:
Difluoromaleic anhydride
3,4-DIFLUORO-2,5-FURANDIONE
3,4-difluoro-furan-2,5-dione
2,5-Furandione,difluoro
2,5-Furandione,3,4-difluoro
difluoro-maleic acid anhydride
Difluormaleinsaeureanhydrid

Chemical & Physical Properties

[ Density]:
1.66g/cm3

[ Boiling Point ]:
129.7ºC at 760 mmHg

[ Molecular Formula ]:
C₄F₂O₃

[ Molecular Weight ]:
134.03800

[ Flash Point ]:
32.2ºC

[ Exact Mass ]:
133.98200

[ PSA ]:
43.37000

[ LogP ]:
0.22040

[ Index of Refraction ]:
1.416

Safety Information

[ HS Code ]:
2917190090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

Customs

[ HS Code ]: 2917190090

[ Summary ]:
2917190090 acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%