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  1. Piperidine - Wikipedia

  2. Piperidine | C5H11N | CID 8082 - PubChem

  3. Piperidine - an overview | ScienceDirect Topics

  4. Piperidine Derivatives: Recent Advances in Synthesis and ...

  5. Piperidine | Formula, Properties & Application

  6. Piperidine - NIST Chemistry WebBook

  7. Piperidine - NIST Chemistry WebBook