Ethyl 4-(dimethylamino)benzoate

Ethyl 4-(dimethylamino)benzoate (CAS 10287-53-3), also known as EDAB, Parbenate, and Kayacure EPA, is a tertiary amine photoinitiator co-initiator used in UV-curable systems.

Where is Ethyl 4-(dimethylamino)benzoate used?

• UV-curable inks and coatings: co-initiator alongside Type II photoinitiators such as benzophenone, increasing cure speed and surface hardness in printing and packaging lines
• Radiation-curable adhesives and sealants: through-cure in pigmented or thick-film formulations
• Photopolymer resin systems for plastics and polymer composites: improved depth of cure and reduced oxygen inhibition at the surface
• It serves as a building block in the synthesis of UV stabilizer intermediates.
• It is also utilized in the production of specialty dye compounds for industrial colorant applications.

Good to know: It accelerates free-radical photopolymerization by donating electrons to excited photoinitiators, enabling rapid cure speeds under UV light exposure.

Commercial specifications

• Purity specifications typically at 98% or higher
• Packaging from kilogram-scale laboratory quantities to bulk drum supply