Powder: -20°C for 3 years | In solvent: -80°C for 1 year
Transcainide(R 54718) 是一种新的利多卡因类似物,是具有口服活性的抗心律失常剂。Transcainide 可阻断牛心脏和大鼠骨骼肌中 BTX 激活的钠通道的开放状态。
规格 | 价格/CNY | 货期 | 数量 | |
---|---|---|---|---|
1 mg | ¥ 1,870 | 现货 | ||
5 mg | ¥ 4,630 | 现货 | ||
10 mg | ¥ 6,590 | 现货 | ||
25 mg | ¥ 9,890 | 现货 | ||
50 mg | ¥ 13,300 | 现货 | ||
100 mg | ¥ 17,800 | 现货 | ||
500 mg | ¥ 35,900 | 现货 |
产品描述 | Transcainide(R 54718), a new lidocaine analog, is an orally active antiarrhythmic agent.Transcainide blocks the open state of BTX-activated sodium channels in bovine heart and rat skeletal muscle. |
体外活性 |
Transcainide (IC50=0.3 μM) inhibited equilibrium [3H]batrachotoxinin binding to sodium channels present on freshly isolated rat cardiac myocytes. Scatchard analysis of [3H]batrachotoxinin binding showed that Transcainide both reduced maximal binding and altered the KD for [3H]batrachotoxinin binding, indicating noncompetitive, allosteric inhibition. Inhibition by Transcainide of [3H]batrachotoxinin binding was reversible within 60 min. Transcainide had little effect on the k-1 of [3H]batrachotoxinin even at concentrations 1000-fold greater than its IC50, indicating a low affinity of Transcainide for activated channels. However, Transcainidee decreased the k + 1 of [3H]batrachotoxinin at a concentration very close to its IC50 concentration for inhibiting equilibrium [3H] batrachotoxin binding. The results are discussed in terms of a model in which Transcainide inhibits [3H] batrachotoxin binding by binding specifically to and stabilizing a nonactivated state of the cardiac sodium channel.[1] Reduction of sodium current by Transcainide was concentration-dependent, with an ED50 of approximately 0.5 μM (n = 9).[2] |
别名 | R54718, R 54718, R-54718 |
分子量 | 373.53 |
分子式 | C22H35N3O2 |
CAS No. | 88296-62-2 |
Powder: -20°C for 3 years | In solvent: -80°C for 1 year
DMSO: 3.74 mg/mL (10 mM), Sonication is recommended.
可选溶剂 | 浓度 体积 质量 | 1 mg | 5 mg | 10 mg | 25 mg |
DMSO | 1 mM | 2.6772 mL | 13.3858 mL | 26.7716 mL | 66.929 mL |
5 mM | 0.5354 mL | 2.6772 mL | 5.3543 mL | 13.3858 mL | |
10 mM | 0.2677 mL | 1.3386 mL | 2.6772 mL | 6.6929 mL |
对于不同动物的给药剂量换算,您也可以参考 更多...
请在以下方框中输入您的动物实验信息后点击计算,可以得到母液配置方法和体内配方的制备方法: 比如您的给药剂量是10 mg/kg,每只动物体重20 g,给药体积100 μL,一共给药动物10 只,您使用的配方为5% DMSO+30% PEG300+5% Tween 80+60% ddH2O。那么您的工作液浓度为2 mg/mL。
母液配置方法:2 mg 药物溶于 50 μL DMSO (母液浓度为 40 mg/mL), 如您需要配置的浓度超过该产品的溶解度,请先与我们联系。
体内配方的制备方法:取 50 μL DMSO 主液,加入 300 μL PEG300, 混匀澄清,再加 50 μL Tween 80,混匀澄清,再加 600 μL ddH2O, 混匀澄清。
您可能有的问题的答案可以在抑制剂处理说明中找到,包括如何准备库存溶液,如何存储产品,以及基于细胞的分析和动物实验需要特别注意的问题。
Transcainide 88296-62-2 Membrane transporter/Ion channel Sodium Channel R54718 R 54718 R-54718 Inhibitor inhibitor inhibit