(±)-U-50488 ((±)-Trans-(1R,2R)-U-50488) hydrate hydrochloride is a selective κ opioid receptor (KOR) agonist[1].
(±)-U-50488 is a racemic mixture of (+)-Trans-(1R,2R)-U-50488 and (-)-Trans-(1S,2S)-U-50488.
[1]. Kirti Kumari Sharma, et al. The search for the "next" euphoric non-fentanil novel synthetic opioids on the illicit drugs market: current status and horizon scanning. Forensic Toxicol. 2019;37(1):1-16.
















