Synonyms: Phosphonicacid, 1,3-propanediylbis-, tetraethyl ester (9CI); Phosphonic acid, trimethylenedi-,tetraethyl ester (7CI,8CI); 1,3-Bis(diethoxyphosphinyl)propane;1,3-Propanediylbis(phosphonic acid) tetraethyl ester; Propane-1,3-diphosphonicacid tetraethyl ester; Tetraethyl propane-1,3-diphosphonate; Tetraethylpropylenediphosphonate