InChI=1/C12H10N2O3/c15-9-12(10(16)14-11(17)13-9)6-8(12)7-4-2-1-3-5-7/h1-5,8H,6H2,(H2,13,14,15,16,17)/t8-/m0/s1/f/h13-14H A3B6397B7D2E8B4F