InChI=1/C13H13BrN4O2S/c1-7-4-8(14)2-3-9(7)16-12(20)6-21-13-17-10(15)5-11(19)18-13/h2-5H,6H2,1H3,(H,16,20)(H3,15,17,18,19)/f/h16,18H,15H2 D5D4CD869F96DF2B