What is the chemical structure of Hepes - Na - N- (2 - Hydroxyethyl) Piperazine - N '-2 - Ethanesulfonic Acid, Sodium Salt?
Hepes-Na is the sodium salt of N- (2-hydroxyethyl) piperazine-N '-2-ethanesulfonate, and its chemical structure is as follows.
The main structure of this compound is a piperazine ring. A 2-hydroxyethyl group is connected to the nitrogen atom at one end of the piperazine ring, and a 2-ethanesulfonate group is connected to the nitrogen atom at the other end, and the sulfonate group exists in the form of sodium salt. From the structural point of view, the piperazine ring is a six-membered nitrogen-containing heterocycle, which has certain rigidity and chemical stability. The presence of 2-hydroxyethyl gives the molecule a certain hydrophilicity, because its hydroxyl group can participate in the formation of hydrogen bonds and enhance the solubility in water. 2-Ethane sulfonate is a strong acidic group, and its sodium salt form can be completely ionized in aqueous solution, which makes the compound have good buffering ability and is often used in biological buffer systems. The overall structure characteristics enable it to effectively maintain the pH stability of the system within a specific pH range, and it is widely used in biochemistry and cell biology experiments to ensure that the activity and function of biological macromolecules and cells are not affected by violent changes in pH.
What are the common applications of Hepes - Na - N- (2 - Hydroxyethyl) Piperazine - N '-2 - Ethanesulfonic Acid, Sodium Salt in biological experiments?
Hepes-Na is the sodium salt of N- (2-hydroxyethyl) piperazine-N '-2-ethanesulfonic acid, which is widely used in biological experiments.
First, it is often seen in the field of cell culture. Cell culture requires accurate maintenance of a stable pH environment. Hepes-Na can effectively resist pH fluctuations caused by external factors by its excellent buffering ability, creating a stable growth microenvironment for cells. When cells are cultured in vitro, they are highly susceptible to changes in medium composition and accumulation of cell metabolites. Hepes-Na can maintain pH in an appropriate range to ensure normal physiological function and growth and reproduction of cells.
Second, protein-related experiments are also commonly used. The structure and function of proteins are extremely sensitive to environmental pH. In experiments such as protein separation, purification and activity research, the Hepes-Na buffer system can stabilize the pH of the solution, prevent the protein from denaturing due to pH discomfort, ensure that the protein is in its natural active state, and help the experiment to accurately explore the characteristics and functions of proteins.
Third, in enzymatic reaction experiments, Hepes-Na also plays a key role. The catalytic activity of enzymes depends on specific pH conditions. Hepes-Na buffer can provide and maintain this suitable pH, so that the enzyme can fully demonstrate the catalytic efficiency and ensure the smooth progress of enzymatic reactions, which is of great significance for the study of enzyme kinetics and enzyme mechanism.
Fourth, there are also many applications in nucleic acid research. In DNA and RNA extraction, amplification and related analysis experiments, it is indispensable to stabilize the pH environment. Hepes-Na can effectively maintain the pH stability of the system, avoid the damage of nucleic acid structure, and ensure the accuracy and reliability of nucleic acid experiment results.
What are the storage conditions of Hepes - Na - N- (2 - Hydroxyethyl) Piperazine - N '-2 - Ethanesulfonic Acid, Sodium Salt?
Hepes-Na is the sodium salt of N- (2-hydroxyethyl) piperazine-N '-2-ethanesulfonic acid. This substance should be stored in a cool and dry place, protected from direct light and moisture. Due to its chemical properties, if exposed to high temperature or humid environment, it may cause changes in its properties and affect its quality and utility.
When stored, it should be placed in a sealed container to prevent reaction in contact with air. Common storage temperature is about 2-8 ° C. In this temperature range, its stability is quite good. If the temperature is too high, the molecular activity will be enhanced, or adverse reactions such as decomposition will be triggered; if the temperature is too low, it may cause crystallization, which will also affect the use.
In addition, the storage place should be kept away from oxidants, acids, bases and other substances. Due to the specific groups in the chemical structure, it is easy to chemically react with these substances and cause deterioration. In the laboratory, it is often placed in a special reagent cabinet and arranged in an orderly manner according to the type of chemical substances, which is convenient for access and avoids mutual interference, so as to ensure that Hepes-Na maintains good performance during storage.
What are the advantages of Hepes - Na - N- (2 - Hydroxyethyl) Piperazine - N '-2 - Ethanesulfonic Acid, Sodium Salt over other buffers?
Hepes-Na is the sodium salt of N- (2-hydroxyethyl) piperazine-N '-2-ethanesulfonic acid. Compared with other buffers, its advantages are as follows:
First, Hepes-Na has good buffering ability. In a wide pH range, especially near the physiological pH (pH 6.8-8.2), it can effectively maintain the stability of the pH of the system. Just like a rock-solid dike, it resists the impact of external acid-base changes on the pH of the system and provides a stable environment for many biochemical reactions. In the field of cell culture, cells are extremely sensitive to pH. Hepes-Na can accurately maintain the pH of the culture medium and ensure the normal growth and metabolism of cells.
Second, this buffer is chemically stable. It is not easy to chemically react with other substances in the system, just like a gentleman who is clean and protected. Under extreme conditions such as high temperature and high ionic strength, it can also maintain its own properties unchanged, so it is suitable for a variety of experimental conditions. For example, in some biochemical experiments that require high temperature treatment, Hepes-Na will not decompose or deteriorate due to rising temperature, ensuring the smooth progress of the experiment.
Third, Hepes-Na has good biocompatibility. It is almost non-toxic and disturbing to biological cells and tissues. It is like a gentle breeze and gently cares for biological systems. In biomedical research, experiments involving biological active substances such as cells and enzymes do not adversely affect their activity, thus ensuring the accuracy and reliability of the experimental results.
Fourth, good solubility. Whether in water or some organic solvents, it can quickly dissolve to form a uniform solution, like ice and snow in the warm sun, quickly integrated into it. This makes it easy to prepare different concentrations of buffers during experimental operations, providing convenience for experiments.
What is the pH buffer range of Hepes - Na - N- (2 - Hydroxyethyl) Piperazine - N '-2 - Ethanesulfonic Acid, Sodium Salt?
Hepes-Na is the sodium salt of N- (2-hydroxyethyl) piperazine-N '-2-ethanesulfonic acid, which is a commonly used biological buffer. Its pH buffer range is about 6.8 to 8.2. In this range, Hepes-Na can effectively resist the large pH change caused by the addition of a small amount of acid or base, and maintain the relative stability of the pH of the system.
This buffer range makes Hepes-Na widely used in many biochemical and cell biology experiments. When cell culture, cells are suitable for growing in an environment close to the physiological pH value, and Hepes-Na can create a stable pH condition to ensure normal cell physiological activities and metabolism. In enzymatic reactions, most enzymes also need a specific pH range to exhibit the best activity. This buffer can ensure the stability of the pH of the reaction system and enable the enzyme to perform its catalytic function efficiently.
In short, Hepes-Na plays a key role in maintaining the pH stability of biological systems due to the specific pH buffer range, providing a solid foundation for the smooth development of various biological experiments.