ethyl-2-oxocyclopentanone carboxylate, 2-propionylcyclopentanone, EINECS 230-979-1, ethyl 2-oxo-cyclopentanecarboxylate, 2-Propionyl-cyclopentanon, 2-propionyl-1-cyclopentanone, 2-propanoylcyclopentanone
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