InChI=1S/C11H22O7P2/c1-9(2)6-5-7-10(3)11(4)8-17-20(15,16)18-19(12,13)14/h6H,5,7-8H2,1-4H3,(H,15,16)(H2,12,13,14)/p-3/b11-10+