4-03-00-00262 (Beilstein Handbook Reference) 866-23-9 AI3-18556 BRN 1210640 Diethyl (trichloromethyl)phosphonate Methanephosphonic acid, trichloro-, diethyl ester NSC 46567 Phosphonic acid, trichloromethyl-, diethyl ester Ro 3-0658