R-6890 is an opioid receptor ligand that acts as a selective antagonist, displaying significant binding affinity to rat opioid receptors with an IC50 of 4.6 nM in Tris buffer at pH 7.4. Its ability to displace radiolabeled opioids from receptors is notable, although its binding affinity is influenced by environmental conditions, particularly sodium chloride concentrations. R-6890 effectively crosses the blood-brain barrier and demonstrates analgesic properties in the warm water-induced tail-flick reflex assay in male Wistar rats, making it a valuable tool for research into pain mechanisms and opioid pharmacology.
R-6890 is an opioid receptor ligand that acts as a selective antagonist, displaying significant binding affinity to rat opioid receptors with an IC50 of 4.6 nM in Tris buffer at pH 7.4. Its ability to displace radiolabeled opioids from receptors is notable, although its binding affinity is influenced by environmental conditions, particularly sodium chloride concentrations. R-6890 effectively crosses the blood-brain barrier and demonstrates analgesic properties in the warm water-induced tail-flick reflex assay in male Wistar rats, making it a valuable tool for research into pain mechanisms and opioid pharmacology.
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