Buy Ketorfanol (SBW-22) Cas 79798-39-3
Ketorfanol (INN, USAN) (developmental code name SBW-22), or ketorphanol, is an opioid analgesic of the morphinan family that was found to possess “potent antiwrithing activity” in animal assays but was never marketed.[1][2] It is a 17-cycloalkylmethyl derivative of morphinan and as such, is closely related structurally to butorphanol, cyclorphan, oxilorphan, proxorphan, and xorphanol, which act preferentially as κ-opioid receptor agonists and to a lesser extent as μ-opioid receptor partial agonists/antagonists.[3]
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