InChI=1/C12H7BrClN3O4/c13-6-3-9(12(19)15-5-6)16-11(18)8-2-1-7(14)4-10(8)17(20)21/h1-5H,(H,15,19)(H,16,18)/f/h15-16H F080E2B6D1A9741B