4-甲基-3-乙基環(huán)戊烷-1,2-二酮;
2-Cyclopenten-1-one,2-hydroxy-3-ethyl-4-methyl;3-ethyl-2-hydroxy-4-methylcyclopent-2-enone;2-Cyclopenten-1-one,3-ethyl-2-hydroxy-4-methyl;Ethyl-3-methyl-4-cyclopentandion-1,2;3-Ethyl-4-methylcyclotene;
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