...attached to the dish surface and should be handled carefully. Avoid touching the cells when replacing media...pyruvate, Corning 10-014-CV (optional) 7.5% sodium bicarbonate, Corning 25-035-CI (optional) 1 M HEPES, HyClone... 7.5 mL 100X glutaGRO, 7.5 mL of 7.5% Sodium Bicarbonate, 7.5 mL 1 M HEPES to 750 mL DMEM + 1 g/L glucose...stored at 4 °C for up to 2 months. After 2 months, discard the tube and thaw a new working stock. 40% POLYETHYLENE...incubator and pour the media into a waste container. Carefully add the OptiMEM + DNA + PEI solution to the CS5...cells (not poured on them) and can be adjusted by carefully tilting the CS5 back and forth. Pro-Tip To help...other components, such as sorbitol and sodium bicarbonate, sorbitol has been found to increase viral titers...