2-(3,4-二甲氧基苯基)-7-羟基苯并吡喃-4-酮

6-乙酰基-7-羟基-4-甲基-2H-色烯-2-酮

6-acetyl-5-hydroxy-4-methyl-coumarin

1-[2-hydroxy-4-(2-hydroxyethoxy)phenyl]ethanone

(4Z)-3-hydroxy-4-[1-[2-[(1E)-1-(2-hydroxy-4-oxocyclohexa-2,5-dien-1-ylidene)ethyl]hydrazinyl]ethylidene]cyclohexa-2,5-dien-1-one