Maintaining the pH stability of the reaction system is a fundamental prerequisite for ensuring the accuracy and reproducibility of experimental results in research and application fields such as biochemistry, molecular biology, and in vitro diagnostics. For this reason, researchers widely use a type of compound called Good's buffer, among which CAPSO buffer(3- (cyclohexylamine) -2-hydroxy-1-propanesulfonic acid, CAS number: 73463-39-5) has become a commonly used buffer component in experimental systems due to its excellent performance under alkaline conditions.

CAPSO powder

Basic physicochemical properties of CAPSO

CAPSO is a white crystalline powder that is easily soluble in water, with a pKa value of 9.6 at 25 ° C and an effective buffering range of pH 8.9-10.3. This characteristic makes it particularly suitable for biochemical reactions that require weak to moderate alkaline environments. Compared with other traditional buffer systems such as carbonate or glycine NaOH, CAPSO has the advantages of low ion interference, good thermal stability, and minimal impact on the activity of most enzymes. Therefore, it is widely used in experimental scenarios that require high reaction environments.

Practical application in membrane protein extraction

Membrane proteins, due to their strong hydrophobicity and complex structure, are prone to denaturation or precipitation during the extraction process due to environmental changes. Existing technical solutions have shown that CAPSO can be used to prepare membrane protein lysis buffer. In such systems, CAPSO can effectively suppress the severe fluctuations in local pH during cell lysis, while controlling the ion strength of the solution to near physiological levels. In addition, CAPSO is not easily complexed with metal ions such as Ca ² ⁺ and Mg ² ⁺, which helps prevent proteins from forming insoluble complexes due to binding with multivalent cations, thereby improving the recovery rate and functional integrity of target proteins.

Support multiple key experimental techniques

In addition to membrane protein research, CAPSO also plays an important role in protein analysis techniques such as Western blot and immunoprecipitation (IP). In these experiments, a stable pH environment facilitates the specific binding of antibodies to antigens and reduces non-specific background signals. Meanwhile, in some alkaline dependent enzymatic reactions (such as alkaline phosphatase labeling detection systems), CAPSO can provide suitable and persistent buffering capacity, improving detection sensitivity and linear range. In the development of in vitro diagnostic reagents, CAPSO has also been used to optimize reaction buffer systems to enhance reagent stability and inter batch consistency.

High quality raw materials ensure the reliability of experiments

With the development of life science research towards refinement and standardization, the requirements for buffer purity, impurity content, and batch consistency are increasingly increasing. CAPSO, as a key buffer material, directly affects the success rate and data reliability of downstream experiments in terms of its quality. Therefore, choosing suppliers with strict quality control systems and stable supply capabilities has become a common consensus among research institutions, diagnostic reagent companies, and biopharmaceutical companies.

Product packaging

Hubei Xindesheng Material Technology Co., Ltd. has long been dedicated to the research and production of biological buffering agents, providing high-purity CAPSO (CAS: 73463-39-5) suitable for multiple application scenarios such as scientific research, in vitro diagnostics, and biotechnology. The company has a sound quality management system and a professional technical support team, committed to providing customers with stable and reliable buffer solutions. If you are looking for a reliable CAPSO supplier, please feel free to contact Hubei Xindesheng - with professional quality, we can help you efficiently promote your scientific research and industrialization process.