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Quinidine
本产品不向个人销售,仅用作科学研究,不用于任何人体实验及非科研性质的动物实验。
Quinidine图片
CAS NO:56-54-2
包装:50mg, 100mg, 200mg, 500mg
包装与价格:
包装价格(元)
Free Sample (0.5-1 mg)电议
50mg电议
100mg电议
200mg电议
500mg电议

产品介绍

生物活性

Quinidine 是一种抗心律失常剂,也是 K+ 通道 (K+ channel) 的有效阻断剂,其 IC50 值为 19.9 μM。Quinidine is a stereoisomer of quinine, originally derived from the bark of the cinchona tree. Quinidine is used to treat abnormal heart rhythms. Like all other class I antiarrhythmic agents, quinidine primarily works by blocking the fast inward sodium current. At micromolar concentrations, quinidine inhibits Na+/K+-ATPase by binding to the same receptor sites as the digitalis glycosides such as ouabain. Quinidine is also used to treat malaria. The half life of oral quinidine is 6 to 8 hours, and it is eliminated by the cytochrome P450 system in the liver. About 20% is excreted unchanged via the kidneys. Quinidine is also an inhibitor of the cytochrome P450 enzyme 2D6, and can lead to increased blood levels of lidocaine, Beta blockers, opioids, and some anti-depressants. Quinidine also inhibits the transport protein P-glycoprotein and so can cause some peripherally acting drugs such as loperamide to have CNS side effects such as respiratory depression if the two drugs are co-administered.


化学数据

分子量324.42
分子式C20H24N2O2
CAS号56-54-2
纯度>98%
溶解性(25°C)DMSO 50 mg/mL
储存和运输条件2-8°C, protect from light, sealed
常温运输及临时存放

不同实验动物依据体表面积的等效剂量转换表(数据来源于FDA指南)

小鼠大鼠豚鼠仓鼠
重量 (kg)0.020.151.80.40.0810
体表面积 (m2)0.0070.0250.150.050.020.5
Km系数36128520
动物 A (mg/kg) = 动物 B (mg/kg) × 动物 B的Km系数
动物 A的Km系数

例如,依据体表面积折算法,将化合物用于小鼠的剂量20 mg/kg 换算成大鼠的剂量,需要将20 mg/kg 乘以小鼠的Km系数(3),再除以大鼠的Km系数(6),得到化合物用于大鼠的等效剂量为10 mg/kg。


储备液配制

以下数据基于产品分子量,对于特殊产品,请参照COA中的储备液配制条件和说明进行操作。

Concentration / Solvent Volume / Mass1 mg5 mg10 mg
1 mM3.0824 mL15.4121 mL30.8242 mL
5 mM0.6165 mL3.0824 mL6.1648 mL
10 mM0.3082 mL1.5412 mL3.0824 mL