InChI=1/C13H13BrN4O2S/c14-10-1-3-11(4-2-10)16-13(20)18-17-12(19)15-7-9-5-6-21-8-9/h1-6,8H,7H2,(H2,15,17,19)(H2,16,18,20)/f/h15-18H 4042D3F7BEDBED9F