
MEM α, No Nucleosides Medium (TM512) by Applied Biological Materials is a 500 ml sterile basal medium with Earle's salts, L-glutamine, sodium bicarbonate (2.2 g/L), and phenol red — without ribonucleosides or deoxyribonucleosides — for DHFR-negative cell selection and general mammalian cell culture. Requires 5–10% CO₂. Store at 2–8°C, protected from light.