Technical Data
Dulbecco’s MEM (DMEM) Ham’s F-12 w/o Hypoxanthine, Thymidine, Phenol Red (Powder)
Cell Culture Grade
Storage RT/4°C    Shipping RT
Components shown as mg/liter
Inorganic Salts:
Calcium Chloride dihydrate154.52
Cupric Sulfate•5H2O0.001245
Ferric Nitrate•9H2O0.05
Ferrous Sulfate•7H2O0.417
Magnesium Chloride28.57
Magnesium Sulfate48.83
Potassium Chloride311.83
Sodium Chloride 6999.5
Sodium Phosphate dibasic71.06
Sodium Phosphate monobasic54.35
Zinc Sulfate•7H2O0.4315
Amino Acids:
L-Asparagine•H2O 8.53
L-Aspartic Acid6.655
L-Cysteine•HCI•H2O 17.65
L-Cystine•2HCI 31.29
L-Glutamic Acid 7.355
L-Histidine HCl•H2O 31.48
L-Isoleucine 54.368
L-Tyrosine•2Na•2H20 55.813
Choline Chloride8.98
Vitamin B120.679
Folic Acid2.66
D-Pantothenic Acid•Ca2.12
Pyridoxal HCI2.00
Pyridoxine HCI 0.031
Thiamine HCI2.17
Linoleic Acid0.042
Lipoic Acid0.105
Putrescine•2HCl 0.081
Sodium Pyruvate 55.05
Total: 12g/liter
Dulbecco’s MEM is the most widely used modification of BME. It contains a 4-fold higher concentration of amino acids and vitamins. Non-essential amino acids and certain essential trace elements were added. The bicarbonate concentration was increased. The standard formula for DMEM is with 1000mg/ml glucose. DMEM “High Glucose“ with 4500mg/ml aides in the cultivation of certain cell types. DMEM was originally developed for the culture of mice embryonic cells. Today, it finds a broad application of serum free culture of normal and transformed mouse and chicken cells.

Ham's Nutrient Mixtures were originally developed to support growth of several clones of Chinese hamster ovary (CHO) cells, of HeLa and of mouse L-cells. Ham’s mixtures were formulated for use with or without serum supplementation, depending on the cell type being cultured. Ham’s F-12 was developed for growth of primary rat hepatocytes and rat prostate epithelial cells. It is also used in a clonal toxicity assay using CHO cells.

Directions per Liter: Dissolve 12g in 800-900ml of ddH2O stirring gently until completely solubilized. If required add 1.2g/L sodium bicarbonate with stirring. Adjust pH of the medium to 0.1-0.3 pH unit below the desired level. Add additional water to bring the solution to 1L. Filter-sterilize using a 0.22 micron membrane filter. Aliquot into sterile containers. Do not autoclave. Contains heat-labile compounds that can be damaged with autoclaving.

Storage and Stability: Store powdered media at RT. Opened bottles should be capped tightly and kept in a dark, low humidity environment. Prepared media should be kept at 4°C and used within a short period of time.

Appearance: White to Off-white, homogeneous, free-flowing powder. Solubility

Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.

1. Barnes, D., Sato, G. Analytical Biochemistry 102: 255-270 (1980). 2. Dulbecco, R., Freeman, G., Virology 8: 396-397 (1959). 3. Smith, J.D., Freeman, G., Vogt, M., Dulbecco, R., The Nucleic Acid of Polyoma Virus 12: 185-196 (1960). 4. Morton, H.J., A Survey of Commercially Available Tissue Culture Media. In Vitro. 6: 89 (1970). 5. Rutzky, L.P., Pumper, R.Q., Supplement to a Survey of Commercially Available Tissue Culture Media. In Vitro 9: 468 (1974).