1-methyl-2-oxocyclopentane-1-carbonitrile;1-methyl-2-oxo-cyclopentane-1-carbonitrile;1-methyl-2-oxo-1-cyclopentanecarbonitrile;2-keto-1-methyl-cyclopentane-1-carbonitrile
1-methyl-2-oxocyclopentane-1-carbonitrile