InChI=1S/C11H13N5O7/c17-3-4(18)6(10(20)21)23-9(5(3)19)14-8-2-7(13-1-12-2)15-11(22)16-8/h1,3-6,9,17-19H,(H,20,21)(H3,12,13,14,15,16,22)