InChI=1S/C10H20O7P2/c1-9(2)7-4-5-10(9,3)8(6-7)16-19(14,15)17-18(11,12)13/h7-8H,4-6H2,1-3H3,(H,14,15)(H2,11,12,13)/t7-,8+,10-/m1/s1