Omnistab AN 5057 is a liquid hindered amine antioxidant, with low volatility and good compatibility. Omnistab AN 5057 also shows excellent synergism with Omnistab AN 1135. Omnsitab AN 5057 is useful for the stability of flexible polyurethane foam for cushions. It can prevent the forming of peroxide during storage and transportation and against further scorch during the foaming process. Omnistab AN 5057 is of low volatility which can prevent dirt in textile especially in automobiles and furniture. It can be used with other phenols, antioxidants, light stabilizers and is recommended in polyurethane plastics, fiber and elastomers.