4-01-00-01329 (Beilstein Handbook Reference) 762-04-9 BRN 0605759 DIETHYL HYDROGEN PHOSPHITE Diethoxyphosphine oxide Diethyl acid phosphite Diethyl phosphite Diethyl phosphonate Diethylfosfit [Czech] EINECS 212-091-6 Ethyl phosphonate ((EtO)2HPO) HSDB 2591 Hydrogen diethyl phosphite NSC 2665 O,O-Diethyl phosphonate Phosphonic acid diethyl ester Phosphonic acid, diethyl ester Phosphorous acid, diethyl ester