2,4-pentadien-1-one, 5-(4-chlorophenyl)-1-(2-hydroxyphenyl)-4-methyl- 5-(4-chlorophenyl)-1-(2-hydroxyphenyl)-4-methylpenta-2,4-dien-1-one InChI=1/C18H15ClO2/c1-13(12-14-7-9-15(19)10-8-14)6-11-18(21)16-4-2-3-5-17(16)20/h2-12,20H,1H3/b11-6+,13-12