Ester of phthalic anhydride with neopentyl glycol

2,2-dimethylpropane-1,3-diyl cyclohex-4-ene-1,2-dicarboxylate

4-Cyclohexene-1,2-dicarboxylic acid, 2,2-dimethyl-1,3-propanediyl ester

2,2'-[Isopropylidenebis(methyleneoxycarbonyl)]bis(4-cyclohexene-1-carboxylic acid)

2,2'-[(2,2-Dimethyl-1,3-propanediyl)bis(oxycarbonyl)]bis(4-cyclohexene-1-carboxylic acid)