InChI=1S/C12H15N2O8P/c15-11(13-8-12(16)17)2-1-7-23(20,21)22-10-5-3-9(4-6-10)14(18)19/h3-6H,1-2,7-8H2,(H,13,15)(H,16,17)(H,20,21)