2-Ethylhexoic acid, trimethanolethane, pentaerythritol, phthalic anhydride polymer 67875-48-3 Hexanoic acid, 2-ethyl-, polymer with 2,2-bis(hydroxymethyl)-1,3-propanediol, 2-(hydroxymethyl)-2-methyl-1,3-propanediol and 1,3-isobenzofurandione