Description_x000D_ General description_x000D_ PharmaGrade products are manufactured under appropriate controls for use as a raw material in pharma or biopharmaceutical production. For more information on the PharmaGrade Program, visit sigma-aldrich.com/safc-pharmagrade._x000D_ Packaging_x000D_ 1 kg in poly bottle_x000D_ 10, 25 kg in poly drum_x000D_ 100 g in poly bottle_x000D_ Application_x000D_ MOPS is a biological buffer also referred to as a “Propane Sultone” buffer. The pKa of MOPS is 7.01 which make it an ideal candidate for medias and protein based buffer formulations to maintain a stable environment in solution. MOPS is considered to be non-toxic to culture cell lines and provides high-solution clarity._x000D_ MOPS is used in cell culture media, biopharmaceutical buffer formulations (both upstream and downstream). MOPS based buffers are used in purification bioprocesses of antibodies, peptides, proteins and blood components._x000D_ Linkage_x000D_ Enhanced Quality Product Documentation on PharmaGrade MOPS