InChI=1/C19H16N2O3/c1-24-12-8-6-11(7-9-12)15-10-16(21-20-15)17-18(22)13-4-2-3-5-14(13)19(17)23/h2-9,15,20,22H,10H2,1H3/p-1/t15-/m1/s1/fC19H15N2O3/h22h/q-1 3F4B356FF1C1AC69