N-[(Z)-(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]acetamide

5-(2-HYDROXYBENZYLIDENE)-2-THIOHYDANTOIN

3-(2-formylphenoxy)propanoic acid

2,2’-(1,6-己二基二氧代)二苯(甲)醛

2-(4,4-diphenyl-1,2-dihydro-3,1-benzoxazin-2-yl)phenol