Levobetaxolol HCl

製品コードS4085 バッチS408501

印刷

化学情報

Chemical Structure Synonyms AL 1577A,(S)-Betaxolol hydrochloride Storage
(From the date of receipt)		 3 years -20°C powder
1 years -80°C in solvent
化学式

C18H29NO3.HCl
分子量 343.89 CAS No. 116209-55-3
Solubility (25°C)* 体外 DMSO 69 mg/mL (200.64 mM)
Water 69 mg/mL (200.64 mM)
Ethanol 69 mg/mL (200.64 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.

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生物活性

製品説明 Levobetaxolol (AL 1577A,(S)-Betaxolol hydrochloride) exhibits a higher affinity at cloned human β1 and β2 receptors with Ki value of 0.76 nM and 32.6 nM, respectively.
in vitro

Levobetaxolol potently antagonizes functional activities at cloned human β1 and β2 receptors, and also at guinea pig atrial β1, tracheal β2 and rat colonic β3 receptors with IC50s of 33.2 nM, 2970 nM and 709 nM, respectively. Levobetaxolol (Ki = 16.4 nM) is more potent than dextrobetaxolol (Ki = 2.97 μM) at inhibiting isoproterenol-induced cAMP production in human non-pigmented ciliary epithelial cells. [1] Levobetaxolol (topically applied) has been shown to reach the back of the eye in sufficient quantities to protect retinal ganglion cells from various types of insults. Levobetaxolol displaces [3H]-nitrendipine for L-type voltage-dependent calcium channel receptor with IC50 of 29.5 μM in rat cortex. Levobetaxolol reduces NMDA-stimulated 45Ca2+ influx by 47.3%. Levobetaxolol (topically applied) reduces the b-wave amplitude caused by ischaemia/reperfusion. [2]
in vivo

Levobetaxolol (150 mg/eye) is more potent than dextrobetaxolol, reducing intraocular pressure by 25.9% in conscious ocular hypertensive cynomolgus monkeys. [1] Levobetaxolol (20 mg/kg) significant protects retinal function and results in significantly thicker the RPE and outer nuclear layer in a photic-induced retinopathy rat model. Levobetaxolol (20 mg/kg) results in a 10-fold up-regulation of bFGF and a two-fold up-regulation of CNTF mRNA levels, trophic factors that have been shown to inhibit retinal degeneration in a number of species. [3]
特徴 An estimated 89-fold more β1-selective vs. β2.

プロトコル(参考用のみ)

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。

各々の製品のための特定の保管と取扱い情報は、製品データシートの上で示されます。大部分のSelleck製品は、推薦された状況の下で安定です。製品は、推薦された保管温度と異なる温度で、時々出荷されます。長期の保管のために必要とされてそれと異なる温度で、多くの製品は、短期もので安定です。品質を維持するが、夜通しの積荷のために最も経済的な貯蔵状況を用いてあなたの送料を保存する状況の下に、製品が出荷されることを、我々は確実とします。製品の受領と同時に、製品データシートの上で貯蔵推薦に従ってください。