
(R)-(+)-Atenololless active enantiomer of the racemic β1-adrenergic receptor antagonist, (R,S)-atenolol. |
Sample solution is provided at 25 µL, 10mM.
































Quality Control & MSDS
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- Purity = 98.00%
- COA (Certificate Of Analysis)
- MSDS (Material Safety Data Sheet)
Chemical structure


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Cas No. | 56715-13-0 | SDF | Download SDF |
Chemical Name | 4-[(2R)-2-hydroxy-3-[(1-methylethyl)amino]propoxy]-benzeneacetamide | ||
Canonical SMILES | NC(CC1=CC=C(OC[C@H](O)CNC(C)C)C=C1)=O | ||
Formula | C14H22N2O3 | M.Wt | 266.3 |
Solubility | ≤5mg/ml in ethanol;15mg/ml in DMSO;20mg/ml in dimethyl formamide | Storage | Store at -20°C |
Physical Appearance | A crystalline solid | Shipping Condition | Evaluation sample solution : ship with blue ice.All other available size:ship with RT , or blue ice upon request |
General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. |
(R)-(+)-Atenolol is the less active enantiomer of the racemic β1-adrenergic receptor antagonist, (R, S)-atenolol [1].
Atenolol is a selective β1 receptor antagonist, a drug belonging to the group of beta blockers, a class of drugs used primarily in cardiovascular diseases. Atenolol is used for a number of conditions including hypertension, angina, long QT syndrome, acute myocardial infarction, supraventricular tachycardia, ventricular tachycardia, and the symptoms of alcohol withdrawal. β1-adrenergic receptor is a G-protein coupled receptor associated with the Gs heterotrimeric G-protein and is expressed predominantly in cardiac tissue.
Pharmacokinetic data of the time course of plasma concentrations over 24 h following oral administration of 50 mg (R)-(+)-Atenolol revealed that the Cmax, AUC, and t1/2 values were 326±87 ng/ml, 2599±639 ng×h/ml, and 8.9±2.9 h, respectively [1].
Reference:[1] Stoschitzky K, Egginger G, Zernig G, et al. Stereoselective features of (R)- and (S)-atenolol: clinical pharmacological, pharmacokinetic, and radioligand binding studies[J]. Chirality, 1993, 5(1): 15-19.
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我要做的两个目的蛋白,分子量一个是140的,另一个是36,内参用的GAPDH。这几天刚刚要做小鼠组织的蛋白,就把新提取的组织蛋白和之前做过的细胞蛋白一起上了,细胞和组织的各上了3个孔。
电泳转膜孵育等条件都是以前做成熟的
之后显影,细胞蛋白的,两个目的和内参都出得挺好;但是小鼠的组织蛋白只有分子量140的那个显出条带了,36的那个显出来的像一片水渍一样,斑片状的黑,内参有时也这样、有时干脆什么都不显。不知道这是什么原因...按说细胞同样的蛋白做出来,WB的各个步骤应该不会有太大问题的。
有点怀疑蛋白提取的不好,我提组织蛋白的的操作是在冰上进行的,裂解液也加有PMSF,用BCA法测得的蛋白浓度大概也有3~5mg/ml。
在这里求助各位高手~望给我指点一下~不胜感激啊!
去垢剂作为添加剂生长蛋白质晶体是一项很有用的技术。非离子和两性离子结晶剂在膜蛋白结晶中已经得到很好应用,目前已经变成常规的实验手段。去垢剂在一些可溶蛋白中也起到了一定的作用,提高了晶体的质量和结果的可重复性 ,促进了单晶的生长, 但具体的影响机制尚不明确。其可能原因是去垢剂的引入使结晶液滴中的蛋白分子更具有亲水性,使溶液中同质蛋白质分子增加。向左转|向右转
如要膜蛋白保持原来的结构应采用:非离子型去垢剂.
表面活性剂:通常由一个极性头和一个非极性尾组成,用于去除难溶于水的污渍
漂白剂:通常含次氯酸盐成分,原理为其氧化性
稀盐酸:用于去除碱性的污渍,如马桶中的结块
碳酸钠溶液:用于去除油渍,其原理为酯在碱溶液中水解,参见皂化反应

