solution, ≥100,000 U/g

recombinant, expressed in E. coli, ≥0.5 U/mg

recombinant, expressed in E. coli, ≥30.0 U/g

≥0.2 U/mg

lyophilized, powder, slightly beige, ≥50 U/mg

lyophilized, powder, brown, 0.5-1.0 U/mg

lyophilized, powder, beige, ~2 U/g

recombinant, expressed in E. coli, ≥0.8 U/mg