Methyl di-t-butyl hydroxyhydrocinnamate

Methyl di-t-butyl hydroxyhydrocinnamate (CAS 6386-38-5), commercially known as Irganox 3114's methyl ester counterpart and often sold under the designation Antioxidant 3114M, is a hindered phenolic antioxidant.

It is used to protect polymers, lubricants, and industrial materials from oxidative degradation during processing and end-use. It functions by scavenging free radicals generated by heat and oxygen exposure.

This process extends the service life of finished products. In plastics and polymer processing, it stabilizes polyolefins, engineering resins, and rubber compounds against thermal oxidation during high-temperature extrusion.

Lubricant and metalworking fluid formulators incorporate it to prevent oxidative breakdown in base oils and synthetic lubricant packages. Coatings and adhesive manufacturers use it to maintain color stability.

It also prevents embrittlement in finished films and bonded assemblies. In printing inks and packaging materials, it guards against oxidative yellowing that would compromise print quality or food-contact compliance.

Methyl di-t-butyl hydroxyhydrocinnamate is supplied as a white to off-white powder or crystalline solid. It is available in technical grade, with purity specifications typically at 98% or above.

Packaging ranges from kilogram-scale bags to bulk quantities suited for industrial procurement volumes. This material ensures long-term stability and performance across a wide variety of industrial applications.