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>=90 U/mg protein

0.05M Tris Buffer and 0.5 M NaCl (before lyophilizing)

MW  270 kDa

Shown to be non reactive for HBsAg, anti-HCV, anti-HBc, and negative for anti-HIV 1 & 2 by FDA approved tests

At -20°C, it maintains the reported activity (≥ 90 U/mg) at least for 14 months

-20°C or lower

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