PIPES Sesquisodium Salt [Piperazine-N,N'-bis (2-ethanesulfonic acid) sesquisodium salt], 5 Kilograms

PIPES Sesquisodium Salt, also known as PIPES Na3, is a chemical compound that has significant applications in the life science marketplace. PIPES stands for piperazine-N,N'-bis(2-ethanesulfonic acid), and the sesquisodium salt refers to the trisodium salt form of PIPES. 

It is primarily utilized as a buffering agent. Buffers are substances that help maintain a stable pH in biological and biochemical processes, ensuring optimal conditions for various enzymatic reactions and cellular activities. 

PIPES Sesquisodium Salt is particularly valuable in biological research, molecular biology, and cell culture applications. It offers excellent buffering capacity in the physiological pH range (6.1 - 7.5), making it suitable for a wide range of experimental conditions.

The compound is often employed in cell culture media, protein purification processes, and various molecular biology techniques like gel electrophoresis and PCR (polymerase chain reaction). 

Additionally, PIPES Sesquisodium Salt is known for its low UV absorbance, making it advantageous for spectroscopic measurements and assays where interference from other compounds must be minimized.