Notes: 5-fluoro CUMYL-PINACA N-pentanoic acid metabolite (Item No. 31286) is an analytical reference standard that is structurally similar to known synthetic cannabinoids. 5-fluoro CUMYL-PINACA N-pentanoic acid metabolite is a metabolite of 5-fluoro CUMYL-PINACA.{68089} It is also a potential metabolite of CUMYL-PINACA based on the published metabolism of 5-fluoro CUMYL-PINACA.{68089,45804} This product is intended for research and forensic applications.