Omnistab AN 412S is a low volatility, high molecular weight,organic sulfur- containing antioxidant intended for Polyolefins and engineering thermoplastics. It is specially recommended for high-temperature long-term applications for Polypropylene, polyethylene and engineering thermoplastics. When Omnistab AN 412S is used together with a primary hindered phenolic antioxidant, the combination provides thermal stability which is not obtainable with conventional thioesters. Omnistab AN 412 is the most efficient thioester Antioxidant which can decrease the usage of hinder phenolic antioxidants and other phosphite ester antioxidants. Omnistab is of good oil resistant and migration resistant properties which is especially good for film, thermal resistant pipes, washing machines, dish washing machines etc.