Bovine Ribonuclease A Purified SolutionChromatographically purified. Aggregate-free. (Monophoretic on native gel electrophoresis.) A liquid in 100mM phosphate buffer containing 0.1% v/v phenol as a preservative. Note: The presence of 100mM phosphate makes this preparation unsuitable for heat treatment. Store at -20C. REQUIRES SPECIAL SHIPPING: DRY ICEThis material is sold for in-vitro use only in manufacturing and research and is not suitable for use in humans or animals. This material should be handled with general laboratory precaution.