InChI=1/C12H15N3O4/c13-8-2-1-5-14(7-8)11-6-9(15(18)19)3-4-10(11)12(16)17/h3-4,6,8H,1-2,5,7,13H2,(H,16,17)/t8-/m1/s1/f/h13H 083C595A91557E9E