1,1,2,2-Tetrafluoroethyl methyl ether    
Appearance:colorless transparent liquid 
Assay: 99.7%     
Cas : 425-88-7
Molecular Formula: C3H4F4O
Molecular Weight:132.06
Density: 1.238g/cm3
boiling point: 36-37°C
melting poing: -107°C
flash point  : -20 °C
refractive index: 1.284
vapor pressure: 1280mmHg at 25°C