13585831301
021-59541103 021-60443211
3004967995
13585831301021-59541103 021-604432113004967995
聯系人:高小姐
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詳細地址：上海嘉定區嘉羅公路1661
化學性質：
| 規格 | 10mM (in 1mL DMSO) 50mg 250mg |
| CAS | 56-54-2 |
| 別名 | N/A |
| 化學名 | (R)-(6-methoxyquinolin-4-yl)((1S,2R,4S,5S)-5-vinylquinuclidin-2-yl)methanol |
| 分子式 | C20H24N2O2 |
| 分子量 | 324.42 |
| 溶解度 | ≥ 11.95mg/mL in DMSO |
| 儲存條件 | 4°C, protect from light, stored under nitrogen |
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while. |
| Shipping Condition | Evaluation sample solution : ship with blue ice |
產品描述：
Quinidine is an antiarrhythmic agent for the treatment of abnormal heart rhythms and also malaria.
Quinidine is a clinical anti-arrythmic drug which affects ionic currents in heart muscle and which has also been shown to be a potent blocker of several classes of K+ channel in a variety of cell types. Bath application of quinidine causes a dose-dependent reduction of the peak amplitude of Ik. The Kd for blockade of Ik at 0 mV is estimated to be 41 μM. Quinidine elicits a dose-dependent increase of the rate of the decay of Ik and this effect is enhanced by membrane depolarization. Quinidine also causes a 5 mV hyperpolarizing shift of the steady-state inactivation curve and increases the half-time for recovery from inactivation. Quinidine does not affect the onset of inactivation measured at -30 mV[1].
Quinidine sulfate is rapidly absorbed, with peak plasma concentrations 60-90 min after an oral dose. Other salts (gluconate, polygalacturonate) are more slowly absorbed, with lower peak concentrations. Quinidine is approximately 70-90 % bound to plasma proteins. It undergoes hepatic oxidative metabolism to form an N-oxide, a 3-hydroxy form, an O-demethyl form and 2'-quinidinone. Over one-half of patients starting quinidine stop within the first year of therapy because of side effects. These include, commonly, diarrhea, nausea, and vomiting which are not necessarily related to high plasma concentrations[2]. Quinidine inhibits metabolism of amphetamine in rats. Quinidine pretreatment results in a significant decrease in the excretion of p-hydroxyamphetamine at 24 and 48 h to 7.2 and 24.1% of the vehicle-control levels, respectively, accompanied by a significant increase in amphetamine excretion between 24 and 48 h to 542% of the control[3].
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原創作者：上海莼試生物技術有限公司
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開 戶 行：中國銀行山東省分行營業部
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