SOC Medium

ItemSize List Price Qty
340-031-721 Pack 4 X 100 mL


SOC medium is a ready-to-use solution, useful in the final step of bacterial cell transformation to obtain maximal transformation efficiency of E. coli.

  • Without magnesium chloride, needs to be added before use.
  • Autoclave sterilized


SOC is a microbial growth medium used for the transformation of competent cells (E. coli). This nutrient-rich microbial broth contains peptides, amino acids, water-soluble vitamins, and glucose in a low-salt formulation.

More specifically SOC Medium can be used: in the propagation of DH-alpha (of E. coli strains) primarily in the recovery step of Escherichia coli competent cell transformations, and to maximize the transformation efficiency of competent cells.


Immediately before use, add 2 M magnesium chloride to a final concentration of 20 mM (10 mL MgCl2/L).


Storage Conditions: 15℃ to 30℃

Shipping Condition: ambient temperature

Autoclave Sterilized

Product and/or packaging contains recycled/renewable content Product and/or packaging is recyclable or reduces waste Product and/or packaging is safer to human and environmental health

UNSPSC: 41106200

Harmonization Code: 3822.00.5090


Max Shelf Life: 24 months

Additional information

Weight 32 oz
Dimensions 8 × 6 × 6 in
Vendor Number


Unit Quantity

Pack 4 X 100 mL

Product Manufacturer

Quality Biological

Product Documentation

Safety Data Sheet 340-031
Technical Information Sheet 340-031
Formulation 340-031