InChI=1S/C16H23N2O8P/c19-15(17-11-3-1-2-6-16(20)21)5-4-12-27(24,25)26-14-9-7-13(8-10-14)18(22)23/h7-10H,1-6,11-12H2,(H,17,19)(H,20,21)(H,24,25)