1-propyne, 3,3-difluoro-1-(propylsulfonyl)- 3,3-difluoro-1-(propylsulfonyl)prop-1-yne InChI=1/C6H8F2O2S/c1-2-4-11(9,10)5-3-6(7)8/h6H,2,4H2,1H