InChI=1/C19H16N2O/c1-21-17(13-20)11-12-18(21)14-7-9-16(10-8-14)19(22)15-5-3-2-4-6-15/h2-12,19,22H,1H3/t19-/m0/s1 AEB9D99F279B0178