InChI=1/C13H15ClN4O2/c1-9-15-4-6-18(9)5-2-3-16-12(19)10-7-11(14)13(20)17-8-10/h4,6-8H,2-3,5H2,1H3,(H,16,19)(H,17,20)/p+1/fC13H16ClN4O2/h15-17H/q+1 FCA1CFC9B7B7C5E8