InChI=1/C13H15BrN4O2S/c1-19-9-4-8(14)10(20-2)3-7(9)6-21-13-17-11(15)5-12(16)18-13/h3-5H,6H2,1-2H3,(H4,15,16,17,18)/f/h15-16H2 B56DAA6BCF3A5DC1