oktadecanoic

Oktadecanoic refers to a chemical term related to an eighteen-carbon chain. It is most commonly associated with octadecanoic acid, also known as stearic acid. Stearic acid is a saturated fatty acid with the chemical formula CH3(CH2)16COOH. It is a waxy solid at room temperature and is found naturally in many animal and vegetable fats and oils.

In chemistry, the prefix "oktadecan-" indicates a saturated hydrocarbon chain of eighteen carbon atoms. The "-oic" suffix signifies a carboxylic acid functional group. Therefore, oktadecanoic acid is specifically an eighteen-carbon saturated fatty acid.

Stearic acid is widely used in the production of soaps, detergents, cosmetics, and candles. It acts as an emulsifier, stabilizer, and thickener in many products. Its esters are also utilized as lubricants and plasticizers. The term "oktadecanoic" in a chemical context almost invariably points to this significant and versatile compound.