lyophilized powder, ≥3.0 units/mg solid

ammonium sulfate suspension, ≥10.0 units/mg protein (modified Warburg-Christian)

≥0.4 unit/mg solid

lyophilized powder, ≥0.5 unit/mg solid

≥0.01 unit/mg solid

recombinant, expressed in CHO cells, vial of 6-12 μg

≥0.05 units/mg protein, Protein ~30 % (balance mostly sucrose)

for single-strand DNA/RNA digestion; ≥100,000 units/ml