• Supports growth of suspension 293 cultures to densities of over 1.5 x 10^7 cells/mL • Transfection compatible serum-free suspension culture medium enables transfection efficiencies of greater than 70% using ExpiFectamine transfection reagent • Enables sustained, high level expression of high density transiently transfected cultures, achieving yields of up to 1 gram per liter of recombinant protein • Supports growth and transfection of 293 cells in culture formats of less than 1 mL in multiwell plates to greater than 10L in disposable bioreactors • Does not contain phenol red Expi293 Expression Medium is formulated with GlutaMAX-I reagent. It is ready to use, with no supplementation required. The chemically defined formulation results in high reproducibility and lot-to-lot reliability. Expi293 Expression Medium contains no human or animal-origin components. The medium is not recommended for adherent cell cultures. Product use: Customers using Expi293 Expression Medium in a manufacturing process, who have a submission with the FDA, may request a letter of authorization from us to reference our Type II Drug Master File (DMF).