Notes: N-Benzyl-4-piperidone (Item No. 21962) is an analytical reference standard that is structurally categorized as a piperidine. It is a starting material that is used in the synthesis of fentanyl (Item Nos. ISO60197 / 14719) and related compounds. The physiological and toxicological properties of this compound are not known. This product is intended for research and forensic applications.