InChI=1S/C8H12N3O8P/c12-4-1-6(11-3-9-7(13)10-8(11)14)19-5(4)2-18-20(15,16)17/h3-6,12H,1-2H2,(H,10,13,14)(H2,15,16,17)/p-1/t4-,5+,6+/m0/s1