Source
Human placenta. NOTE: Source material tested for hepatitis B antigen and HIV-1 antibody

Quality
Electrophoretically homogeneous (SDS-PAGE)
Tested and found negative for bacteria, fungi, and mycoplasma

Preparation and Storage
Stable for at least three months at -20°C. Avoid multiple freeze-thaws.

Handling
Recommended concentration - 1-5 μg/cm2 of growth surface depending on cell type (guidelines for coating included with product).

Formulation
Frozen in 10 mM acetic acid