Source
Human placenta. NOTE: Source material tested for HBsAG, for anti-HIV-1 and anti-HIV-2, and anti-HCV virus-1 and virus-2.

Quality
Electrophoretically homogeneous (SDS-PAGE)
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

Formulation
1 M Sodium Chloride, 1.25 mM Tris, pH 8.0