Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 3290-92-4, Whether you call it Trimethylolpropane Trimethacrylate or 2-Ethyl-2-hydroxymethyl-1 -3-propanediol Trimethacrylate you can be assured the products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.