3,3'-ethylidenebis[4-hydroxy-2-benzopyrone]
Names
[ CAS No. ]:
1821-16-5
[ Name ]:
3,3'-ethylidenebis[4-hydroxy-2-benzopyrone]
[Synonym ]:
Methyl-dicumarol
4,4'-dihydroxy-3,3'-ethane-1,1-diyl-bis-chromen-2-one
Ethylidene dicoumarol
Chemical & Physical Properties
[ Density]:
1.534g/cm3
[ Boiling Point ]:
520.7ºC at 760 mmHg
[ Molecular Formula ]:
C20H14O6
[ Molecular Weight ]:
350.32200
[ Flash Point ]:
188.6ºC
[ Exact Mass ]:
350.07900
[ PSA ]:
100.88000
[ LogP ]:
3.46240
[ Vapour Pressure ]:
1.14E-11mmHg at 25°C
[ Index of Refraction ]:
1.717
Safety Information
[ RIDADR ]:
UN 2811
[ Packaging Group ]:
III
[ Hazard Class ]:
6.1(b)
[ HS Code ]:
2932209090
Synthetic Route
Customs
[ HS Code ]: 2932209090
[ Summary ]:
2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%