SEARCH Articles Figures Tables Acid diethyl ester Diethyl Ester Diethyl phosphonate esters Diethyl-phenyl Phenyl esters Phenyl phosphonic acid Phenylic acid Phosphonate esters Phosphonic acid Phosphonic acid esters Phosphonic acid, -, diethyl Phosphonic acid/phosphonate Phosphonic acids acidity Phosphonic ester Phosphonous Esters Phosphonous acid Phosphonous acid esters