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Oxprenolol-d7 is intended for use as an internal standard for the quantification of oxprenolol (Item No. 16080) by GC- or LC-MS. Oxprenolol is an orally bioavailable β-adrenergic receptor (β-AR) antagonist (Ki = 7.10 nM in a radioligand binding assay using rat heart tissue).1 It is non-selective and binds to both β1- and β2-ARs (Kds = 2.09 and 1.35 nM in isolated rat heart and uterus, respectively).2 Oxprenolol is selective for β-ARs over serotonin (5-HT) receptors in rat sarcolemmal membrane preparations (IC50s = 4.13 and 23,300 nM, respectively), but it binds to 5-HT1A receptors in rat hippocampus and 5-HT1B in rat striatum (Kis = 94.2 and 642 nM, respectively).3,4 Formulations containing oxprenolol have been used to treat hypertension and angina pectoris.5
WARNING This product is not for human or veterinary use.
1. Binding characteristics of 3H-
2. The β1-
3. Serotonergic and adrenergic regulation of skeletal muscle metabolism in the rat. II. The use of [125I]iodolysergic acid diethylamide and [125I]iodopindolol as probes of sarcolemmal receptor function and specificity. The Journal of Biological Chemisty 258(20), 12499-12508 (1983).
4. Structural analysis by the comparative molecular field analysis method of the affinity of β-
5. Oxprenolol hydrochloride: Pharmacology, pharmacokinetics, adverse effects and clinical efficacy. Pharmacotherapy 3(2), 68-81 (1983).