Dulbecco's Modified Eagle Medium/ Nutrient Mixture F-12 Ham (DMEM/F12, 1:1 Mixture) With 25mM L-Glutamine, 15mM HEPES buffer, 0.5mM Sodium pyruvate and 1.2gms per litre Sodium bicarbonate, is supplied by HiMedia. It is available in the form of a red coloured, clear solution. It has a pH in the range of 7.0 -7.6 and an osmolality between 300.00 -340.00 Osm/Kg H20. It is advisable to store this product between 2-8C and away from bright light. Media composition (in mg/L) is as follows:

Calcium chloride dihydrate (154.50)

Copper sulphate pentahydrate (0.001)

Disodium hydrogen phosphate (71.02)

Ferric nitrate nonahydrate (0.05)

Ferrous sulphate heptahydrate (0.42)

Magnesium chloride hexahydrate (61.20)

Potassium chloride (311.80)

Sodium bicarbonate (1200.00)

Sodium chloride (6996.00)

Sodium dihydrogen phosphate (54.30)

Zinc sulphate heptahydrate (0.43)

Amino acids

Choline chloride (8.98)

D-Biotin (0.003)

D-Ca-Pantothenate (2.24)

Folic acid (2.66)

Niacinamide (2.02)

Pyridoxal hydrochloride (2.00)

Pyridoxine hydrochloride (0.03)

Riboflavin (0.22)

Thiamine hydrochloride (2.17)

Vitamin B12 (0.68)

myo-Inositol (12.60)

D-Glucose (3151.00)

DL-Thioctic acid (0.10)

HEPES buffer (3574.50)

Hypoxanthine (2.40)

Linoleic acid (0.04)

Phenol red sodium salt (8.63)

Putrescine hydrochloride (0.08)

Sodium pyruvate (110.00)

Thymidine (0.36)

Dulbeccos Modified Eagle Medium/Nutrient Mixture F-12 Ham (DMEM/F-12, 1:1 mixture) was originally formulated for rat neuroblastoma cells and MDCK cells. The mixture is extremely nutritious and supports growth of a wide variety of cells including certain epithelial, endothelial and granulosa cells. This is a 1X Liquid Cell Culture Medium with 25mM L-Glutamine, 15mM HEPES buffer, 0.5mM Sodium pyruvate and 1.2gms per litre Sodium bicarbonate. HEPES, a zwitterionic buffer having a pKa of 7.3 at 37C prevents the initial rise in pH that tends to occur at the initiation of a culture and increases the buffering capacity of the medium.