Methylergometrine maleate (Synonyms:马来酸甲麦角新碱; Methylergonovine maleate; Ryegonovin; Spametrin F)
目录号 : KM5373 CAS No. : 57432-61-8 纯度 : 98%

Methylergometrine maleate (Methylergonovine maleate) 是一种麦角生物碱,是一种具有血管收缩和子宫收缩作用的 Methysergide 的活性代谢产物。Methylergometrine maleate 是一种有效的,选择性的,具有口服活性的 5-HT 受体拮抗剂,pA2 值为 9.6。Methylergometrine maleate 具有抗偏头痛和多巴胺能活性,可用于预防和控制产后出血。

规格 价格 是否有货 数量
5mg
In-stock
10mg
In-stock
50mg 询价 In-stock
100mg 询价 In-stock

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生物活性

Methylergometrine maleate (Methylergonovine maleate) is an ergot alkaloid and an active metabolite of Methysergide with vasoconstrictive and uterotonic activity. Methylergometrine maleate is a potent, selective and orally active 5-HT receptors antagonist with a pA2 value of 9.6. Methylergometrine maleate has antimigraine and dopaminergic activity. Methylergometrine maleate can used for the prevention and control of postpartum hemorrhage.

体外研究

Both Methysergide and Methylergometrine displace the concentration-response curve of 5-HT to the right and depressed the maximum effect ; thus, both agents behaved as non-competitive antagonists of 5-HT. Methylergometrine is approximately 40-times more potent than Methysergide as an antagonist of the 5-HT-induced responses, since the calculated apparent pA2 values are 9.6 and 8.0, respectively.

体内研究

Methylergometrine is more potent than Methysergide as a vasoconstrictor on bovine middle cerebral artery and human coronary arteries, an effect on 5-HT1B receptors. Subacute oral administration would result in metabolism of Methysergide to Methylergometrine.

分子式
C20H25N3O2.C4H4O4
分子量
455.50
CAS号
57432-61-8
中文名称
马来酸甲麦角新碱
运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

溶解性数据
In Vitro: 

DMSO : 100 mg/mL (219.54 mM; Need ultrasonic)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 2.1954 mL 10.9769 mL 21.9539 mL
5 mM 0.4391 mL 2.1954 mL 4.3908 mL
10 mM 0.2195 mL 1.0977 mL 2.1954 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 (sealed storage, away from moisture)。-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: ≥ 2.08 mg/mL (4.57 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (4.57 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 20.8 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。

  • 2.

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

    Solubility: ≥ 2.08 mg/mL (4.57 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (4.57 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 20.8 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。

The molarity calculator equation
Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)
The dilution calculator equation
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
This equation is commonly abbreviated as: C1V1 = C2V2
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