MMB-FUBINACA (FUB-AMB; Item No. 9001960) is an analytical reference standard that is structurally classified as a synthetic cannabinoid. It is the methyl ester analog of AB-FUBINACA (Item No. 14096), where the terminal amide group of the valine has been replaced with a methyl ester. The physiological and toxicological properties of this compound are not known. This product is intended for forensic and research applications.