链球菌溶血素O 来源于化脓链球菌

链球菌溶血素O 来源于化脓链球菌, lyophilized powder, Protein ~3 % by Lowry, 25,000-50,000 U/vial

链球菌溶血素O 来源于化脓链球菌, ≥1,000,000 units/mg protein, recombinant, lyophilized powder, expressed in E. coli