1-Piperidinebutanenitrile 1-Piperidinebutyronitrile 4-(1-Piperidine)butyronitrile 4-Piperidinobutyronitrile 4672-18-8 5-20-03-00050 (Beilstein Handbook Reference) AI3-33247 BRN 0110495 EINECS 225-119-7 NSC 72650 gamma-Piperidinobutyronitrile