Difelikefalin (MR-13A9; CR-845; MR-13A-9; trade name Korsuva) is a novel, peripherally specific, and potent kappa opioid receptor agonist approved in 2021 as an analgesic opiod peptide for the treatment of moderate-to-severe itching. Difelikefalin was approved for medical use in the United States in August 2021.

纯度：≥98%

CAS：1024828-77-0