InChI=1S/C18H20F4O6P2/c19-17(20,29(23,24)25)15-9-5-13(6-10-15)3-1-2-4-14-7-11-16(12-8-14)18(21,22)30(26,27)28/h5-12H,1-4H2,(H2,23,24,25)(H2,26,27,28)