PENTAERYTHRITOL2,2-bis[Hydroxymethyl]-1,3-propanediol季戊四醇2,2-Bis(hydroxymethyl)-1,3-propanediolPentaerythritol2,2-二羟甲基-1,3-丙二醇2,2-Bis(hydroxyMethyl)propane-1,3-diolpentaerythritol1,1,1-tris(hydroxymethyl)ethanolPETPmonopentaerythritolmethane tetramethylolpentaerythritetetrakis(hydroxymethyl)methanetetramethylolmethanetetrahydroxymethylmethane2,2-bis(hydroxymethyl)-1,3-propanediolmono pentaerythritolTHMEtetra(hydroxymethyl)methane