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10 mM Sodium Phosphate, pH 7.3, with 70 mM NaCl

≥95% by SDS-PAGE

MW 16,000 

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

>5 years

≤ -70°C

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