Synonyms: 2,7,9,12-Tetraoxapentadec-14-enoicacid, 14-methyl-8,13-dioxo-, 2-[(2-methyl-1-oxo-2-propenyl)oxy]ethyl ester(9CI); Carbonic acid, tetramethylene bis(2-hydroxyethyl) ester, dimethacrylate(8CI); 1,4-Butanediol carbonate (1:2) bis(2-hydroxyethyl) ester dimethacrylate;OKM 9; Tetramethylenebis(methacryloyloxyethyl carbonate)