60702-49-0
ethyl acetoacetate diethyl acetal
89435-03-0
1-(3,3-diethoxy-2-methyloxetan-2-yl)ethanone
105-39-5
氯乙酸乙酯
93183-68-7
1-(4,4-diethoxy-2-methyloxetan-2-yl)ethanone
67079-92-9
3-hydroxy-3-methyl-levulinic acid ethylester

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