1,2-Benzenedicarboxylic acid, 2-ethyl-2-(((2-methyl-1-oxo-2-propenyl)oxy)methyl)-1,3-propanediyl didecyl ester 68443-43-6 Didecyl 2-ethyl-2-(((2-methyl-1-oxoallyl)oxy)methyl)propane-1,3-diylphthalate EINECS 270-521-8