Notes: JWH 018 (Item No. 10900) is a potent synthetic cannabinoid (CB) which has been identified in smoking mixtures.{18291,19507} NNEI (Item No. 15001) is an analog of JWH 018 which differs by having an amide linker inserted between the naphthalene and ketone groups. 5-fluoro NNEI 2'-naphthyl isomer is a derivative of NNEI with a fluorine atom at the terminal carbon of the pentyl chain and the naphthyl group joined at the 2 rather than 1 position. This modification of other synthetic CBs typically increases the compound’s affinity for both CB receptors significantly.{18696} The physiological and toxicological properties of this compound are not known. This product is intended for forensic and research applications.