HEPES is all known as N-2-hydroxyethylpiperazine-N-2-ethane sulfonic acid, is a commonly used biological buffer. pKa (25℃) is 7.5 and an effective buffer range of pH is 6.8-8.2. The greatest advantage of HEPES is that to maintain the pH range of a solution for a longer period of time in an open environment. HEPES cannot pass through biofilms. It is a chemical and enzymatic stable substance with limited effect on biochemical reactions, and the absorption of visible and ultraviolet light is extremely low. Therefore, it is generally considered that HEPES is an excellent biological buffer, and there is no toxic effect to the cells. The working concentration is 10-50 mM and the final concentration for cell culture is 10 mM.
SYSTEM SERTIFICATION
GMP Production and Quality System The company complies with cGMP requirements, holds the NMPA medical device registration certificate, and is certified under ISO 13485 and ISO 9001 standards. Among its products, the company’s 1 M HEPES Solution complies with ISO 13485, ISO 9001.
