受注:045-509-1970 |
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Synonyms | Phentolamine methanesulfonate | Storage (From the date of receipt) |
3 years -20°C powder 1 years -80°C in solvent |
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化学式 | C17H19N3O.CH4O3S |
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分子量 | 377.46 | CAS No. | 65-28-1 | |
Solubility (25°C)* | 体外 | DMSO | 76 mg/mL (201.34 mM) | |
Water | 76 mg/mL (201.34 mM) | |||
Ethanol | 76 mg/mL (201.34 mM) | |||
* <1 mg/ml means slightly soluble or insoluble. * Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations. |
製品説明 | Phentolamine Mesylate(Phentolamine methanesulfonate) is a reversible and nonselective alpha-adrenergic receptor antagonist, used for the prevention or control of hypertensive episodes. |
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in vitro | Phentolamine mesylate displaces binding of the selective alpha 1 receptor antagonists [125I]HEAT and [3H]prazosin and the alpha 2 receptor antagonists [3H]rauwolscine and [3H]RX 821002 with relatively high affinity in corpus cavernosum membranes. Phentolamine mesylate causes concentration dependent relaxation in erectile tissue strips pre-contracted with adrenergic agonists phenylephrine, norepinephrine, oxymetazoline and UK 14,304, as well as with non-adrenergic contractile agents Endothelin and KCl. Phentolamine mesylate induces relaxation of corpus cavernosum erectile tissue by direct antagonism of alpha 1 and 2 adrenergic receptors and by indirect functional antagonism via a non-adrenergic, endothelium-mediated mechanism suggesting nitric oxide synthase activation. [1] Phentolamine, an alpha-adrenergic antagonist, blocks the vasoconstriction associated with the epinephrine used in dental anesthetic formulations, thus enhancing the systemic absorption of the local anesthetic from the injection site. [2] |
in vivo | Phentolamine is a reversible competitive alpha-adrenergic antagonist with similar affinities for alphal and alpha2 receptors. Phentolamine mesylate causes vasodilatation and thus hypotension by decreasing peripheral vascular resistance. [4] Phentolamine mesylate (30 and 100 nM) dose-dependently enhances electrical field stimulation-induced relaxation of the rabbit corpus cavernosum. Phentolamine relaxes rabbit corpus cavernosum independent of alpha-adrenergic receptor blockade. Phentolamine mesylate relaxes nonadrenergic noncholinergic neurons of the rabbit corpus cavernosum by activating NO synthase and is independent of alpha-adrenergic receptor blockade. [5] |
Stress-induced stenotic vascular remodeling via reduction of plasma omega-3 fatty acid metabolite 4-oxoDHA by noradrenaline [ Sci Rep, 2024, 14(1):4178] | PubMed: 38378892 |
Chronic stress promotes glioma cell proliferation via the PI3K/Akt signaling pathway [ Oncol Rep, 2021, 46(3)202] | PubMed: 34296295 |
長期の保管のために-20°Cの下で製品を保ってください。
人間や獣医の診断であるか治療的な使用のためにでない。
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