2,4-bis(octylthio)-6-(4-hydroxy-3,5-di-tert-butylanilino)-1,3,5-triazine

2,4-bis(octylthio)-6-(4-hydroxy-3,5-di-tert-butylanilino)-1,3,5-triazine, also known as Irganox 565, is a hindered phenolic antioxidant with thioether co-stabilizer functionality. It protects polymers and organic materials from oxidative and thermal degradation during processing.

The chemical is identified by CAS 991-84-4 and is widely used to ensure long-term service life for various materials. In plastics and elastomers, it stabilizes polyolefins and rubber compounds against heat-induced degradation.

This stabilizer is essential during extrusion and molding processes to prevent structural breakdown. Automotive component manufacturers use it in under-hood parts and sealing systems where sustained thermal resistance is critical.

Coating and adhesive formulators incorporate it to prevent discoloration and loss of mechanical integrity. It ensures that finished films exposed to elevated temperatures maintain their physical properties and aesthetic appearance.

Printing and packaging applications rely on this antioxidant to maintain substrate integrity. It is particularly effective at preventing oxidative yellowing in flexible packaging materials used in various consumer sectors.

The product is supplied as a powder or granular solid for easy handling in industrial environments. It is available in technical and polymer-grade specifications suited to compounding and masterbatch production.

Packaging is typically offered in multi-kilogram bags or drums to meet industrial procurement volumes. This ensures a reliable supply chain for large-scale manufacturing operations requiring high-performance stabilization.