InChI=1/C21H16N2O2/c22-11-12-25-19-8-4-3-7-16(19)18-13-20(24)23-21-15-6-2-1-5-14(15)9-10-17(18)21/h1-10,18H,12-13H2,(H,23,24)/t18-/m0/s1/f/h23H B09244D3692B1861