||Full chemical name
||5-FUR-144, Degradant,5-fluoro UR-144 ,XLR-11
|| Average mass
||Formulation A crystalline solid
||λmax 221, 315 nm
||Shipping Wet ice in continental US; may vary elsewhere
5F-UR-144, which also goes by the names XLR-11 and 5″-fluoro-UR-144, is a potent synthetic cannabinoid.
It belongs to the indole class of synthetic cannabinoids. The nitrogen in the indazole ring is attatched to a fluoropentyl side chain similar to a number of other indole and indazole synthetic cannabinoids such as 5F-AKB48 and 5F-PB-22. Indeed this side chain is how the 5F portion of the name arises. The indole core structure is bonded again at the third position to a lipophilic tetramethylcyclopropyl moiety. A methanone ketone bridge joins the two.
5F-UR-144 may be described as a 3-(tetramethylcyclopropylmethanoyl)indole relative of the cannabinoids A-834,735 , A-796,260 and UR-144