Purified Bovine Alpha ChymotrypsinChromatographically prepared by the procedure of Yapel, et al., J. Amer. Chem. Soc., 88, 2573 (1966). A lyophilized powder. Store at 2-8C.This 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.