4-piperidino-butyronitrile, 4-(piperidin-1-yl)butyronitrile, 4-piperidin-1-yl-benzoic acid methyl ester, Methyl 4-(piperidin-1-yl)benzoate, methylpiperidinobenzenecarboxylate, 1-Piperidinebutanenitrile, 4-piperidin-1-yl-butanenitrile, Methyl 4-piperidinobenzenecarboxylate, methyl 4-piperidylbenzoate, 4-Piperidino-benzoesaeure-methylester, 4-Piperidino-butyronitril