乙烯基正丁醚

2,2,6-三甲基-4H-1,3-二英-4-酮

(1E)-5-hydroxy-1-methoxyhexa-1,4-dien-3-one

2-(1-butoxy)-6-methyl-2,3-dihydro-4H-pyran-4-one

反式-4-甲氧基-3-丁烯-2-酮