solution, light brown, ≥10 U/mg protein (~25 mg/ml)
powder, almost white, ~12 U/mg
powder, ≥3 U/mg
buffered aqueous suspension, 2× Crystallized, ≥16 units/mg protein
crude powder, 1.5-10 units/mg solid
lyophilized powder, ≥10 units/mg protein
lyophilized powder, aseptically filled; Protein (Biuret):≥80%; ≥8.0 units/mg protein
saline suspension, ≥1.0 units/mg protein (biuret)