InChI=1S/C11H15N4O7P/c16-9-5(2-22-23(19,20)21)15-7(10(9)17)4-1-12-8-6(4)13-3-14-11(8)18/h1,3,5,7,9-10,12,15-17H,2H2,(H,13,14,18)(H2,19,20,21)/t5-,7+,9-,10+/m1/s1