Cayman Chemical, 103429-32-9, Bottle, Glass, Clear

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  • Cayman Chemical

    A water soluble, cyclic octapeptide which acts as a receptor antagonist that is selective for the µ opioid receptor (IC50 = 3.5 nM) over the δ receptor (IC50 = 4,500 nM); a poor antagonist of the somatostatin receptor (IC50 = 14.3 μM).