4-01-00-02447 (Beilstein Handbook Reference) 4891-54-7 BRN 1713537 Demeton-sulfone Diethyl 2-ethylsulfonylethyl thionophosphate Ethanol, 2-(ethylsulfonyl)-, O-ester with O,O-diethyl phosphorothioate O,O-Diethyl 2-ethylmercaptoethyl thiophosphate, thiono isomer O,O-Diethyl-O-(2-ethylsulfonylethyl)phosphorothioate Phosphorothioic acid, O,O-diethyl O-(2-(ethylsulfonyl)ethyl) ester Systox sulfone THIONODEMETON SULFONE