Cyclohexyl dimethyl ethyl ammonium hydroxide (CDEA) with the chemical formula C10H24NOH is a water-soluble liquid that is commonly used as a surfactant or detergent ingredient. When dissolved in water, CDEA forms an aqueous solution that is commonly referred to as cyclohexyl dimethyl ethyl ammonium hydroxide aq. solution. This solution is often used in personal care products such as shampoos, conditioners, and body washes as a foaming agent, emulsifier, and viscosity builder. It can also be used in industrial applications such as oil and gas production, where it is used as a demulsifier to separate oil and water.