Type IX-A, lyophilized powder, 1,000,000-5,000,000 units/g protein (30 min assay)

Type VII-A, lyophilized powder, 5,000,000-20,000,000 units/g protein, pH 6.8 (30 min assay)

Type HP-2S, aqueous solution, ≥90,000 units/mL

Type L-II, lyophilized powder, 1,000,000-3,000,000 units/g solid

aqueous glycerol solution, ≥5,000,000 units/g protein, pH 6.8 (biuret)

≥10,000,000 units/g protein (30 min assay), recombinant, expressed in E. coli overproducing strain, lyophilized powder

≥20,000 units/mg protein, recombinant, expressed in E. coli overproducing strain, lyophilized powder

Type H-3, aqueous solution, ≥90,000 units/mL