InChI=1S/C14H18N4O9/c19-4-7(21)10(24)6(20)3-18-11-9(12(25)17-14(27)16-11)15-5(13(18)26)1-2-8(22)23/h6-7,10,19-21,24,26H,1-4H2,(H,22,23)(H,17,25,27)/t6-,7+,10-/m0/s1