3-dodecoxy-6-[(octadecylamino)methylidene]cyclohexa-2,4-dien-1-one

2,4-dihydroxy-3,5-dimethoxybenzaldehyde

7-hydroxy-3-(2-methylbut-3-en-2-yl)-6-(3-methylbut-2-enyl)chromen-2-one

methyl 5-(4-formyl-3-hydroxyphenoxy)pentanoate

7-Hydroxy-3-(4-nitrophenyl)-2H-chromen-2-one