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