Source: Bovine Pancrease Trypsin-Chymotrypsin is the co-crystal of Chymotrypsin and Trypsin so it has the properties of both. Source: Bovine ( ... cows (or pigs).Primary structure and spatial structure of α- Chymotrypsin have been clearly explained, which is a single peptide chain ... L-tyrosine and L-phenylalanine in priority.The high purity Chymotrypsin of Baoding Sino-chem Industry Co., Ltd.. is ...