InChI=1/C20H13NO/c1-11-9-17(22)16-10-14-6-5-12-3-2-4-13-7-8-15(20(16)21-11)19(14)18(12)13/h2-10H,1H3,(H,21,22)/f/h21H 85C9D4CAD0A9CE5F