In the realm of scientific research, the quality and consistency of reagents directly impact the validity of experimental outcomes. 3-(N-Morpholino)propanesulfonic acid, or MOPS (CAS 1132-61-2), stands out as a highly regarded buffering agent, relied upon by professionals across various scientific disciplines. This article explores the intrinsic properties of MOPS, its purity standards, and practical guidance on where to buy 3-Morpholinopropanesulfonic Acid, while emphasizing the importance of MOPS buffer stability.

MOPS is a zwitterionic buffering agent, characterized by its chemical formula C7H15NO4S and a molecular weight of 209.26 g/mol. Its physical appearance is typically a white powder, and it exhibits excellent solubility in water, often exceeding 1000g/L at 20°C. The critical attribute of MOPS is its pKa of 7.2 at 25°C, which makes it exceptionally well-suited for maintaining pH in biological systems close to neutral conditions. This characteristic is paramount for applications like cell culture, where precise pH control is necessary for cell viability and growth. Understanding the MOPS pKa for cell culture allows researchers to fine-tune their experimental environments for optimal results.

The purity of MOPS is a key factor determining its suitability for specific applications. Many suppliers offer MOPS with a purity exceeding 97% or even 99%, ensuring minimal interference from impurities. This high purity is essential for sensitive processes such as high-resolution electrophoresis or complex biochemical assays. The MOPS applications in biochemistry are vast, ranging from enzyme kinetics studies to metabolic pathway analysis, all of which demand reliable pH buffering.

For researchers planning their experiments, knowing where to buy 3-Morpholinopropanesulfonic Acid is essential. The chemical is widely available from specialized laboratory supply companies, often with options for different quantities, from grams for bench-scale work to kilograms for larger-scale operations. When sourcing MOPS, it's advisable to check product specifications, including purity, physical form, and any relevant certifications. This diligence ensures that the purchased MOPS meets the specific requirements of the intended MOPS biological buffer uses.

Furthermore, the inherent MOPS buffer stability is a critical advantage. Unlike some other buffers that can degrade or change buffering capacity over time or with temperature fluctuations, MOPS generally exhibits good stability. This reliability is crucial for long-term experiments, storage of stock solutions, and consistent performance across different experimental runs. The consistency provided by MOPS in electrophoresis buffer systems, for example, directly contributes to reproducible separation patterns.

In summary, MOPS is a foundational reagent for scientific research. Its well-defined chemical properties, high purity options, and broad range of MOPS applications in biochemistry and beyond make it an invaluable asset in the laboratory. By understanding its characteristics and sourcing it from reputable suppliers, researchers can leverage the exceptional MOPS buffer stability to ensure the success and integrity of their scientific endeavors.