MOPS by MP Biomedicals is a high grade reagent. Also known as (3-(N-morpholino)propanesulfonic acid), this buffer is a structural analogue to the MES buffer. It contains a morpholine ring and is similar to HEPES which has a Piperazine ring. It is useful in the pH range of 6.5 - 7.9. With a pKa of 7.20, MOPS is considered an excellent buffer for many biological systems at near-neutral pH. CAS Number: 1132-61-2 Quantity provided: 100 gm per bottle Chemical formula: C7H15NO4S Molecular weight: 209.26 Working concentration range: 20mM MOPS has a wide range of applications in biological and chemical industries. It is regularly used as a buffering agent in biology and biochemistry. It has been tested and recommended for polyacrylamide gel electrophoresis. However, usage above 20 mM in mammalian cell culture work is not recommended. These buffers are essential supplied for molecular biology laboratories. These reagents are suitable for industrial and research applications.