Product NameHyodesoxycholic Acid CAS No.83-49-8 Molecular formulaC24H40O4 Molecular weight 392.58 g/mol Purity99% Other detailsWhite or off-white powder,easily soluble in ethanol,almost insoluble in water. Description Hyodeoxycholic acid, also known as 3±,6±-Dihydroxy-5²-cholan-24-oic acid or HDCA, is a secondary bile acid, one of the metabolic byproducts of intestinal bacteria. It differs from deoxycholic acid in that the 6±-hydroxyl is in the 12 position in the former. The 6±-hydroxyl group makes HDCA a hydrophilic acid, a property it shares with hyocholic acid. HDCA is present in mammalian species in different proportions. It is the main acid constituent of hog bile, and for this reason it was used industrially as precursor for steroid synthesis before total synthesis became practical.