Methyl di-t-butyl hydroxyhydrocinnamate

Methyl di-t-butyl hydroxyhydrocinnamate (CAS 6386-38-5) is a hindered phenolic antioxidant, the methyl ester counterpart of Irganox 3114, often sold as Antioxidant 3114M.

Where is Methyl di-t-butyl hydroxyhydrocinnamate used?

• Polymers, lubricants and industrial materials: protection from oxidative degradation during processing and end-use
• Plastics and polymer processing: stabilises polyolefins, engineering resins and rubber compounds against thermal oxidation in high-temperature extrusion
• Lubricants and metalworking fluids: prevents oxidative breakdown in base oils and synthetic lubricant packages
• Coatings and adhesives: maintains colour stability and prevents embrittlement in films and bonded assemblies
• Printing inks and packaging: guards against oxidative yellowing that would compromise print quality or food-contact compliance
• It functions by scavenging free radicals generated by heat and oxygen exposure.

Commercial specifications

• Purity typically 98% or above
• Packaging from kilogram-scale bags to bulk quantities