ROSULfan®O is an anionic surfactant used in various industries. It is primarily used as an air-entraining agent in the construction industry for producing lightweight and durable materials. It is also used in synthetic extinguishing agents as an additional foaming agent. Additionally, it is effective as a wetting agent in the oil extraction industry and improves the solubility of other surfactants in alkaline environments. ROSULfan O is biodegradable and complies with the regulations on detergents.