InChI=1S/C7H11N2O9P/c10-3-2(1-17-19(14,15)16)18-7(4(3)11)5(12)8-6(13)9-7/h2-4,10-11H,1H2,(H2,14,15,16)(H2,8,9,12,13)/t2-,3-,4-,7+/m1/s1