Synonyms
Ethyl 4-Aminophenyl-1-phenethylpiperidine
Ethyl 4-Anilino-N-phenethylpiperidine
Ethyl Despropionyl fentanyl
Ethyl 4-ANPP (hydrochloride) also known as Ethyl-Despropionyl-Fentanyl, is an analytical reference standard that is structurally similar to known opioids, and is intended for research and forensic applications.
See September 2022 NFLIS Report