6?-Naltrexol (CRM)

6?-Naltrexol (CRM)

CAT N°: 18790
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6?-Naltrexol (Item No. 18790) is a certified reference material that is structurally categorized as an opioid. It is the major metabolite of naltrexone (Item Nos. ISO60192 | 15520).{32375} Unlike naltrexone, which acts as a µ-receptor antagonist or inverse agonist, 6?-naltrexol is a neutral opioid antagonist.{32377} 6?-Naltrexol binds the µ-opioid receptor more potently than naloxone (Item Nos. ISO60191 | 15594) or naltrexone (Kis = 94, 420, and 265 pM, respectively) but is ~100-fold less effective at blocking morphine-modulated pain in vivo, as assessed using the mouse hot plate test.{32376} This product is intended for research and forensic applications.

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