产品信息 CAS number 90170-80-2 Storage -20°C Form Solid Formulation Lyophilized from 100 mM sodium citrate buffer, 20 mM Tris-HCl, pH 8.3. Primary Target thrombin Specific activity ≥5 units/mg protein Unit definition One unit is defined as the amount of antithrombin that will inhibit 1.0 unit of human plasma thrombin present in excess. Thrombin activity is measured using 500 µM tosyl-Gly-Pro-Arg-pNA as substrate in 100 mM Tris-HCl at 25°C, pH 8.2 Purity single band by SDS-PAGE Source Prepared from plasma that has been shown by certified tests to be negative for HBsAg and for antibodies to HIV and HCV.