2-6 Crick units/mg solid
40 mg tablets
spectrophotometric assay
lyophilized powder
PDI substrate; protein ≥50% by UV; ≤2 Kunitz units/mg protein
white powder, ≥150 U/g
Tested and found suitable for use in the quantitation of urea-nitrogen
recombinant, expressed in E. coli, ≥12 U/mg