Synonyms: 1,3-Propanediol, 2,2-bis((phosphonooxy)methyl)-, 1,3-bis(dihydrogen phosphate);Pentaerythritol phosphate;1,3-Propanediol, 2,2-bis((phosphonooxy)methyl)-, bis(dihydrogen phosphate);Pentaerythritol octahydrogen tetraphosphate;3-(phosphonooxy)-2,2-bis[(phosphonooxy)methyl]propyl dihydrogen phosphate (non-preferred name);PEPA