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. 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.

CAS：79798-39-3
中文别名：
英文别名：UNII-8Z0ZXE70XL;17-cyclopropylmethyl-4-hydroxymorphinan-6-one;SBW-22;
分子式：C20H25NO2
分子量：311.418
精确质量：311.189
Psa：40.54
Logp：2.9775

UNII：8Z0ZXE70XL

密度：1.26g/cm3
沸点：489.6ºC at 760 mmHg
闪点：249.9ºC
折射率：1.641