Tridecyl Alcohol Ethoxylate, also known as Polyoxyethylene Tridecyl Alcohol or Polyoxyethylene Tridecyl Ether, has a carbon chain length of 13.

It is used as a wetting agent, emulsifier, and detergent in a variety of applications. These include stabilizers, agrochemical emulsifiers, paper de-inking, dust control, plastics, detergents, industrial cleaners, cosmetics, and pharmaceuticals.