InChI=1S/C11H22N8O4/c12-7(2-1-3-15-11(14)18-19(22)23)10(21)17-6-4-8(9(13)20)16-5-6/h6-8,16H,1-5,12H2,(H2,13,20)(H,17,21)(H3,14,15,18)/t6-,7+,8+/m1/s1