(3,4-difluorophenyl) [(Z)-1-propenyl] ether (3,4-difluorophenyl) [(Z)-prop-1-enyl] ether InChI=1/C9H8F2O/c1-2-5-12-7-3-4-8(10)9(11)6-7/h2-6H,1H3/b5-2