Analytes - cholesterol

cholesterol: CAS No. 57-88-5, C27H46O, molecular weight 386.65, boiling point 360°C, melting point 148.5°C, density 1.07gm/mL, vapor pressure 0.00mm Hg at 25°C, slightly water soluble is a white crystalline solid used in pharmaceutical and dermal preparations as an emulsifying agent and as a raw material for syntheses involving microbiological degradation of the side chain and as a pharmaceutic aid (emulsifying agent). In animals, it is the precursor of bile acids, steroid hormones, and provitamin D3. It can be derived either from intestinal absorption of dietary cholesterol or from synthesis within the body. It is found in all body tissues, especially in the brain, spinal cord, and in animal fats or oils and is the main constituent of gallstones. It is most frequently measured in blood plasma and foods using reversed phase HPLC, GC/FID and GC/MS, usually to determine threshold levels since it has been associated with coronary artery disease.