4F-PV8 is also known as 4-Fluoro PV8. It is a para- fluoro that is analog of PV8. It is intended for forensic and research applications. They are present in the form of bulk crystals that is characterized by a purity of 99.8%. The formal name of this compound is 4f-Î±-pyrrolidinoheptiophenone, 4f-alpha-PHpP, and 4F-PV8. It is considered one of the rarest compounds. 4F-PV8 is a crystalline solid form.