5F-MN-24 CAS # 1445580-60-8 is a NNEI analog, which is itself an analog of JWH 018 that varies between the naphthalene and ketone groups by having an amide linker added. 5-fluoro NNEI is a NNEI derivative in which the terminal carbon of the pentyl chain has been attached to a fluorine atom. Typically, this alteration of other synthetic CBs increases the affinity of the compound substantially for both CB receptors. There is no recognition of the physiological and toxicological properties of this compound. This product is intended for applications in forensics and science.