(1-Methylethylidene)bis(4,1-phenyleneoxy(1-methyl-2,1-ethanediyl))bismethacrylate 2-Propenoic acid, 2-methyl-, (1-methylethylidene)bis(4,1-phenyleneoxy(1-methyl-2,1-ethanediyl)) ester 24447-72-1 EINECS 246-252-7