InChI=1S/C15H9ClO2/c16-11-7-5-10(6-8-11)15-9-13(17)12-3-1-2-4-14(12)18-15/h1-9H 2-(4-chlorophenyl)-4H-chromen-4-one Clc1ccc(cc1)C2=CC(=O)c3ccccc3O2 Clc1ccc(cc1)C2=CC(=O)c3ccccc3O2