InChI=1S/C12H15N2O7P/c15-10-9(5-20-22(17,18)19)21-12(11(10)16)14-6-13-7-3-1-2-4-8(7)14/h1-4,6,9-12,15-16H,5H2,(H2,17,18,19)/t9-,10-,11-,12+/m1/s1