The biological buffer PIPES-2NA, also known as piperazine-1,4-diethanesulfonic acid disodium salt in Chinese, is a powdered substance commonly used in biological research. The molecular formula of PIPES-2NA is C8H16N2Na2O6S2, with a molecular weight of 346.33. It is a biological buffer commonly used in cell culture and biochemical experiments to maintain the acid-base balance of the experimental system and protect the activity of biological samples. When using PIPES-2NA, it is necessary to choose the appropriate concentration and dosage according to specific experimental requirements and conditions to ensure the accuracy and reliability of the experimental results. Meanwhile, attention should also be paid to storage and usage methods to avoid contamination and cross contamination. In summary, PIPES-2NA is an important biological buffer with broad application and market prospects.