InChI=1S/C11H12N3O5/c15-2-5-8(16)9(17)10(19-5)4-1-12-7-6(4)13-3-14-11(7)18/h1,3,5,8-10,15-17H,2H2,(H,13,14,18)/t5-,8-,9+,10-/m0/s1