Dioctyl sodium sulfosuccinate or docusate sodium – often referred to as DSS, Aerosol OT or AOT – is a common ingredient in consumer products, especially laxatives of the stool softener type. It is also used as an emulsifying, wetting, and dispersing agent, as a pesticide, as well as a component of the oil dispersant Corexit which was used in the Deepwater Horizon oil spill of 2010. It is an anionic surfactant, a substance that lowers the surface tension of water.
Docusate calcium and docusate potassium, as well as other dioctyl sulfosuccinate salts are also widely used in the same areas.
Dioctyl sodium sulfosuccinate