Nociceptin (1-13), amide TFA

Nociceptin (1-13), amide TFA, a potent ORL1 receptor (opioid receptor-like 1 receptor, OP4) agonist, exhibits a pEC 50 of 7.9 in mouse vas deferens and a K i of 0.75 nM for rat forebrain membrane binding [1] [2].