Cholesterol Oxidase (COD) Cat # Abt P-5010 The enzymatic classification number is EC 1.1.3.6, which catalyzes: Cholesterol+O2- → Cholester-4-en-3-one+H2O2. Total cholesterol (TC) in serum includes two parts: free cholesterol (FC) and cholesterol ester (CE). Cholesterol esters in serum can be hydrolyzed into free cholesterol and free fatty acids (FFA) by cholesterol esterase, and cholesterol generates △ 4-cholesterone and hydrogen peroxide under the oxidation of cholesterol oxidase. Our company's cholesterol oxidase is a genetically modified product that is free from animal derived viruses. The product has high purity and good activity.