InChI=1S/C10H15N2O7P/c1-6-4-12(10(14)11-9(6)13)8-3-2-7(19-8)5-18-20(15,16)17/h4,7-8H,2-3,5H2,1H3,(H,11,13,14)(H2,15,16,17)/t7-,8+/m0/s1