4-甲基-5-羟基呋喃-2-酮

4,4-二甲氧基-3-甲基-2-丁烯酸乙酯

N'-acryloyl-4-methyl-N-(2-methylallyl)benzenesulfonohydrazide

2-ethoxy-3-methyl-2H-furan-5-one

5-(1,2-diaza-1-t-butyl-4-methylbutadien-4-ylidene)-2,2-dimethyl-1,3-dioxan-4,6-dione