InChI=1/C11H13BrN4O2/c12-6-4-8-9(16-11(18)15-8)5-7(6)14-10(17)2-1-3-13/h4-5H,1-3,13H2,(H,14,17)(H2,15,16,18)/p+1/fC11H14BrN4O2/h13-16H/q+1 9E6A74983231F840