InChI=1/C13H10BrN3O3/c14-8-1-4-12(15-6-8)17-13(18)16-9-2-3-10-11(5-9)20-7-19-10/h1-6H,7H2,(H2,15,16,17,18)/f/h16-17H CCB2AFAD31654D23