InChI=1/C21H19NO2/c23-21-9-8-19-7-6-16(14-20(19)24-21)15-22-12-10-18(11-13-22)17-4-2-1-3-5-17/h1-10,14H,11-13,15H2/p+1/fC21H20NO2/h22H/q+1 006DB8F81CC99A93