Stearyl Alcohol and Oleyl Alcohol are mixtures of long-chain fatty alcohols. Stearyl Alcohol consists primarily of n-octadecanol, while Oleyl Alcohol is primarily unsaturated 9-n-octadecenol. Octyldodecanol is a branched chain fatty alcohol. Fatty alcohols are higher molecular weight nonvolatile alcohols. They are produced from natural fats and oils by reduction of the fatty acid (-COOH) grouping to the hydroxyl function (-OH). Alternately, several completely synthetic routes yield fatty alcohols which may be structurally identical or similar to the naturally-derived alcohols.