Betamethasone(Synonyms: 倍他米松)

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Betamethasone (Synonyms: 倍他米松) 纯度: 99.97%

Betamethasone 是一种合成糖皮质激素,具有抗炎和免疫抑制活性。Betamethasone 可加速胎儿肺成熟并诱导基因表达和细胞凋亡。

Betamethasone(Synonyms: 倍他米松)

Betamethasone Chemical Structure

CAS No. : 378-44-9

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Free Sample (0.1-0.5 mg)   Apply now  
10 mM * 1 mL in DMSO ¥935 In-stock
100 mg ¥850 In-stock
500 mg ¥3400 In-stock
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5 g   询价  

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生物活性

Betamethasone is a synthetic glucocorticoid with anti-inflammatory and immunosuppressive activities. Betamethasone accelerates fetal lung maturation and induces gene expression and apoptosis[1][2][3][4].

体外研究
(In Vitro)

Betamethasone (0.1-1 μM; 12 h) induces gene expression in L929 cells[4].
Betamethasone (0.1-1 μM; 48 h) induces CEM C7 T-cells apoptosis[4].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

体内研究
(In Vivo)

Betamethasone (0.48 mg; i.v.gtt for 48 h) decreases the hypercapnia-induced increase in CBF due to decreased cerebral vasodilatation[1]. Betamethasone (0.05 ml (1 mg/L); topical injection) ameliorates spinal nerve transection induced mechanical allodynia and thermal hyperalgesia, and reduces the activation of NF-κB and elevation of TNFα and IL-1β, and induces the expression of IL-10 in the rats brain[2].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Rambouillet-Colombia ewes bred on a single occasion are received hypercapnic challenges[1]
Dosage: 0.48 mg
Administration: Injected into the fetal jugular vein at a rate of 1 ml/h (10 μg betamethasone/h) and maintained over the next 48 h.
Result: Decreased cerebral blood flow (CBF) in all brain regions measured except the hippocampus after 24 h of infusion.
The reduction in CBF was diminished to about 25-30 % after 48 h of infusion.

Clinical Trial

分子量

392.46

Formula

C22H29FO5

CAS 号

378-44-9

中文名称

倍他米松;倍他美松

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

溶解性数据
In Vitro: 

DMSO : ≥ 50 mg/mL (127.40 mM)

* “≥” means soluble, but saturation unknown.

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 2.5480 mL 12.7402 mL 25.4803 mL
5 mM 0.5096 mL 2.5480 mL 5.0961 mL
10 mM 0.2548 mL 1.2740 mL 2.5480 mL

*

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month (protect from light)。-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。

In Vivo:

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液,再依次添加助溶剂:

——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用; 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比;如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶

  • 1.

    请依序添加每种溶剂: 10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.5 mg/mL (6.37 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (6.37 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀;向上述体系中加入50 μL Tween-80,混合均匀;然后继续加入 450 μL生理盐水定容至 1 mL。

    将 0.9 g 氯化钠,完全溶解于 100 mL ddH₂O 中,得到澄清透明的生理盐水溶液

  • 2.

    请依序添加每种溶剂: 10% DMSO    90% (20% SBE-β-CD in saline)

    Solubility: ≥ 2.5 mg/mL (6.37 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (6.37 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中,混合均匀。

    将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中,再用生理盐水定容至 10 mL,完全溶解,澄清透明
  • 3.

    请依序添加每种溶剂: 10% DMSO    90% corn oil

    Solubility: ≥ 2.5 mg/mL (6.37 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (6.37 mM,饱和度未知) 的澄清溶液,此方案不适用于实验周期在半个月以上的实验。

    以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中,混合均匀。

*以上所有助溶剂都可在 上海金畔生物科技有限公司 网站选购。
参考文献
  • [1]. Schwab M, et, al. Effects of betamethasone administration to the fetal sheep in late gestation on fetal cerebral blood flow. J Physiol. 2000 Nov 1;528(Pt 3):619-32.

    [2]. Xie W, et, al. Betamethasone affects cerebral expressions of NF-kappaB and cytokines that correlate with pain behavior in a rat model of neuropathy. Ann Clin Lab Sci. Winter 2006;36(1):39-46.

    [3]. Kubin ME, et, al. Clinical Efficiency of Topical Calcipotriol/Betamethasone Treatment in Psoriasis Relies on Suppression of the Inflammatory TNFα – IL-23 – IL-17 Axis. Acta Derm Venereol. 2017 Apr 6;97(4):449-455.

    [4]. Hofmann TH, et, al. Various glucocorticoids differ in their ability to induce gene expression, apoptosis and to repress NF-kappaB-dependent transcription. FEBS Lett. 1998 Dec 28;441(3):441-6.

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