InChI=1/C13H12BrN3O/c14-10-5-3-9(4-6-10)13(18)15-12-7-11(16-17-12)8-1-2-8/h3-8H,1-2H2,(H2,15,16,17,18)/f/h15-16H C324444E8CAC3A68