Bovine HemoglobinHemoglobin is the major component of mammalian erythrocytes where it functions as the oxygen-carbon dioxide transport system. The molecule is composed of a heme group with four peptide chains and has a molecular weight of 64,500 daltons. Suitable protease substrate. Prepared from repeatedly washed, then lysed, and dialyzed bovine red cells. Provided as a lyophilized powder.