| CAS No: | 1132-61-2 |
| Name: | 3-Morpholinopropanesulfonic Acid |
| EINECS: | 214-478-5 |
| Formula: | C7H15NO4S |
| Weight: | 209.26 |
| Other Names: | MOPS |
| Type: | Chemical reagents |
| Shelf Life: | 3 years |
| Brand Name: | Look Chem |
| Place of Origin: | Shandong, China |
3-Morpholinopropanesulfonic Acid (MOPS) can be said to be an “old acquaintance” in the biological laboratory. This white crystalline powder may seem ordinary, but it plays a key role in life science research. Its molecular structure is very distinctive, with a morpholine ring connected to a sulfonic acid group through a propyl chain. This design makes it an expert in pH regulation, particularly adept at maintaining stability in the pH range of 6.5-7.9, which is close to the physiological environment.
Compared to traditional phosphate buffering agents, the biggest advantage of MOPS is that it is not easily entangled with calcium and magnesium ions in the solution, avoiding the annoying precipitation problem. In the laboratory, you often see researchers preparing it into transparent aqueous solutions for various delicate experiments, such as cultivating delicate cells or conducting enzyme reactions that are particularly sensitive to pH changes.
| Item | Specification |
| Product Name | 3-Morpholinopropanesulfonic Acid |
| CAS No. | 1132-61-2 |
| Appearance | Powder |
| Shelf Life | 2 years |
| Packing | 1kg/bag,25kg/bag or as your requirements |
Melting point :277-282 °C
Density :1.3168 (rough estimate)
Bulk density: 350kg/m ³
Vapor pressure: 0Pa at 25℃
Refractive index: 1.6370 (estimate)
When it comes to the practical application of 3-Morpholinopropanesulfonic Acid in the laboratory, it can be said that one is proficient in all eighteen martial arts. When working in the cell room, the biggest headache for researchers is the unstable state of the cells, and MOPS can show its strength at this time. It is like a careful nanny, providing a stable growth environment for cells, especially during long-term cultivation, ordinary buffering agents may “fall off the chain” halfway, while MOPS can always maintain pH stability. Interestingly, different types of cells are quite receptive to MOPS, whether it is adherent epithelial cells or suspension cultured immune cells, they usually grow healthier in media containing MOPS.
In molecular biology laboratories, 3-Morpholinopropanesulfonic Acid is a standard equipment for RNA related experiments. Anyone who has conducted RNA experiments knows that RNA is very delicate and can degrade with even a slight pH change. At this point, MOPS buffer comes in handy, especially during RNA electrophoresis, as it ensures even distribution of the electric field, allowing RNA molecules to line up neatly according to size. In fact, not only electrophoresis, but also in qPCR and other reactions that require precise temperature control, adding an appropriate amount of MOPS can provide “protection” for enzyme reactions, avoiding pH drift caused by high temperature and affecting amplification efficiency.
Pharmaceutical companies are particularly fond of 3-Morpholinopropanesulfonic Acid. In the process of drug development, researchers need to simulate the human body environment to test drug efficacy, and MOPS becomes an ideal “scene designer” at this time. For example, when developing protein drugs, formulation experts use MOPS to maintain drug stability and prevent drug aggregation or inactivation during storage. In industrial fermentation production, MOPS plays a stabilizing role, especially in large-scale production of vaccines or monoclonal antibodies. The pH control in the culture tank directly affects the yield, and the stable performance of MOPS becomes particularly valuable.
The application scope of 3-Morpholinopropanesulfonic Acid is far beyond these. At environmental monitoring stations, technicians use it to stabilize the pH of water samples, facilitating accurate detection of pollutant content; In food testing laboratories, MOPS buffer may be used to simulate the acidic and alkaline environment of food and evaluate its preservative effect. Even in some interdisciplinary studies, such as microbial ecology, researchers use MOPS to restore the living conditions of microorganisms in the natural environment. These applications may seem insignificant, but they precisely reflect the universality of MOPS as a basic reagent. Just like a versatile person in the laboratory, wherever a stable pH environment is needed, MOPS’s presence can be seen.
With the emergence of new technologies, 3-Morpholinopropanesulfonic Acid is also constantly expanding its “career map”. For example, in the recent popular research on organ chips, scientists have attempted to use MOPS to simulate more complex physiological microenvironments; In the field of synthetic biology, MOPS may be used to optimize the stability of artificial biological systems. It can be foreseen that this seemingly ordinary buffering agent will continue to exert photothermal effects at the forefront of scientific research, helping scientists explore more mysteries of life.
The most commendable aspect of 3-Morpholinopropanesulfonic Acid is its “high emotional intelligence” – understanding how to coexist harmoniously with biomolecules. In protein experiments, it does not forcefully bind to proteins like some buffering agents, but silently maintains environmental stability. This characteristic is particularly important in studying protein-protein interactions, as any non-specific binding may mislead experimental results. Similarly, in cell experiments, MOPS exhibits good biocompatibility and does not easily cross the cell membrane to disrupt normal cell activity.
In practical operation, the convenience of 3-Morpholinopropanesulfonic Acid has also been highly praised. Newly arrived graduate students in the laboratory may be pleasantly surprised to find that MOPS powder dissolves very quickly during their first preparation, and can obtain a clear solution by simply stirring a few times. And it is not as delicate as some reagents, and does not require strict protection from light or nitrogen gas. It can be kept stable by regular storage. This user-friendly feature is particularly important in high-throughput experiments – imagine that when dozens of buffer solutions need to be prepared simultaneously, MOPS’s “worry free” feature can indeed improve a lot of work efficiency.
From an economic perspective, 3-Morpholinopropanesulfonic Acid can be said to be the “cost-effective choice”. Although the price alone is not the cheapest, its usage concentration is usually low, 0.1M can achieve good results, and one bottle of reagent can be used for a long time. More importantly, the stability of MOPS reduces the probability of experimental repetition, which invisibly saves a lot of time and labor costs. For long-term projects, choosing reliable reagents such as MOPS is actually more economical.
3-Morpholinopropanesulfonic Acid is also reassuring in terms of safety. It has low toxicity and does not require special protection during routine operations, making it easy for students and novice experimenters to get started. Moreover, MOPS is environmentally friendly and the waste liquid treatment is relatively simple, which conforms to the green concept of modern laboratories. These features enable MOPS to be used without barriers in various sensitive fields, such as clinical testing or food analysis.
With the advancement of technology, 3-Morpholinopropanesulfonic Acid is constantly demonstrating new potential. Today, with the increasing popularity of automated experimental platforms, the stability of MOPS precisely meets the high requirements for reagent consistency in robotic arm operations. In emerging fields such as microfluidics, the compatibility of MOPS makes it an ideal choice for microenvironment control.
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