4-02-00-00800 (Beilstein Handbook Reference) 53102-27-5 BRN 1813546 BUTYRIC ACID, ESTER with DIETHYL (2,2,2-TRICHLORO-1-HYDROXYETHYL)PHOSPHONATE O,O-Diethyl 2,2,2-trichloro-1-butyryloxy ethyl phosphonate Phosphonic acid, (2,2,2-trichloro-1-hydroxyethyl)-, diethyl ester, butyrate