Notes: 4-Anilino-1-benzylpiperidine (Item No. 20086) is an analytical reference standard that is categorized as an impurity of certain opioids. It has been identified as an impurity of fentanyl (Item Nos. ISO60197 / 14719) and its analogs. The physiological and toxicological properties of this compound are not known. This product is intended for research and forensic applications.