(Ethylimino)di-2,1-ethanediyl bismethacrylate (Ethylimino)diethylene 2-methyl-2-propenoate 13972-49-1 2-Methyl-2-propenoic acid, (ethylimino)diethylene ester 2-Propenoic acid, 2-methyl-, (ethylimino)di-2,1-ethanediyl ester 2-Propenoic acid, 2-methyl-, (ethylimino)diethylene ester EINECS 237-751-0