lyophilized powder, ≥20 units/mg protein
salt-free, lyophilized powder, 600-2400 units/mg protein
buffered aqueous solution, ≥500 units/mg protein (BCA)
recombinant, expressed in HEK 293 cells, lyophilized powder, ≥1,000 units/mg protein (Lowry)
Type V-S, lyophilized powder, ≥1,000 units/mg protein
Type VI-S, lyophilized powder, 200-1,000 units/mg protein
vial of ≥4 units
lyophilized powder, ≥900 units/mg protein