InChI=1/C13H13ClN4O/c14-10-6-11(12(17-7-10)18-13(15)16)19-8-9-4-2-1-3-5-9/h1-7H,8H2,(H4,15,16,17,18)/p+1/fC13H14ClN4O/h18H,15-16H2/q+1 B4A16A54D91A01D8