Pancreatic ribonuclease; RNase; RNase l; RNase A; Pancreatic RNase;Ribonuclease l; Endoribonuclease l.
A freeze-dried material
Store desiccated at -15℃ or below. Allow to come to room temperature before opening. Before returning to storage, re-desiccate under vacuum over silica gel for a minimum of four hours. Re-seal before returning to -15℃ or below.
That amount of enzyme causing the hydrolysis of RNA at a rate such that k (velocity constant) equals unity (Kunitz units) at 25℃ and pH 5.0.
Not less than 70U/mg material (RNase A content approximately 70%)
less than 50 CFU/gram.
Dissolves readily at 2mg/ml in analytical grade water to give a clear solution.