1,3-Propanediol, 2,2'-(oxybis(methylene))bis(2-((acetyloxy)methyl)-, tetraacetate 2,2'-(Oxybis(methylene))bis(2-((acetyloxy)methyl)propane-1,2-diyl)tetraacetate 67754-23-8 Dipentaerythritol hexacetate EINECS 266-999-2