Propargyl alcohol propoxylate is an organic acid used in chemical mechanical polishing (cmp) compositions as a corrosion inhibitor. It has been shown to inhibit the growth of erythromycin-resistant bacteria by binding to metal ions. It also has surfactant properties and can be used as a surfactant or emulsifier in detergents, cosmetics and other products. The phosphite group provides a carboxylate group which reacts with the metal on the surface of the pipe to inhibit corrosion.