lyophilized powder, ≥200 units/mg protein (E1%/280, 3′-5′-Phosphodiesterase)

≥250 units/μL, ≥90% (SDS-PAGE), recombinant, expressed in E. coli, buffered aqueous glycerol solution

≥250 units/μL, ≥99% (SDS-PAGE), recombinant, expressed in E. coli, buffered aqueous glycerol solution, ultrapure grade

100-300 units/mg protein

Protein: ≥40% E1%/280 (Balance primarily sodium acetate); 100-300 units/mg protein

Type VI, crude dried venom, ≥0.01 unit/mg solid

vial of ≥0.40 units, Purified

Type IV, crude dried venom, ≥0.01 unit/mg solid