2-Butenoic acid, 3-((diethoxyphosphinyl)oxy)-, ethyl ester (9CI) 2-Carbethoxy-1-methylvinyl-diethylphosphate 2-Ethoxycarbonyl-1-methylvinyl diethyl phosphate 5675-57-0 AI3-22015 CROTONIC ACID, 3-HYDROXY-, ETHYL ESTER, DIETHYL PHOSPHATE Diethyl phosphate 3-hydroxycrotonic acid, ethyl ester OS 1808 Phosphoric acid, diethyl ester, ester with ethyl 3-hydroxycrotonate SD 1,808