InChI=1/C18H20N4O/c23-12-6-11-19-17-15-9-4-5-10-16(15)21-18(22-17)20-13-14-7-2-1-3-8-14/h1-5,7-10,23H,6,11-13H2,(H2,19,20,21,22)/p+1/fC18H21N4O/h19-21H/q+1 AB00B31535714861