Description: 1.0% Casein digest (NZ amine), 0.5% NaCl, and 0.5% yeast extract. 500mL, 6 Pack, sterile. Application: Used for the maintenance and propagation of bacteriophage lambda. This item does not contain MgSO4. Please refer to part number N0170 or N0175 when MgSO4 is necessary. Shipping Conditions: Ambient. Storage Conditions: Room Temperature.