137393-50-1
methyl 2-(cyanomethyl)-3-oxobutanoate
134304-59-9
methyl 2-acetylhexa-2,4-dienoate
134304-60-2
(E)-methyl 2-acetyl-5-hydroxyhex-3-enoate
70569-81-2
methyl 2,6-dimethyl-2H-pyran-5-carboxylate
171924-94-0
甲基1-乙酰基环戊烷羧酸酯

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