Main ingredients: C15-C18; molecular weight is 280-282; soluble in alcohol, ether, benzene, gasoline, chloroform, insoluble in water; has the general chemical properties of a dicarboxylic acid.

It is a light yellow transparent oily liquid at room temperature, with a melting point of 13.4℃ and a specific gravity of 0.8905. It is insoluble in water and soluble in organic solvents such as ethanol and gasoline. It is converted to stearic acid when hydrogenated. It has the general chemical properties of organic dicarboxylic acids and the chemical properties of unsaturated double bonds.