(2-Chlorophenyl)methyl 3-((dimethoxyphosphinyl)oxy)-2-butenoate 2-Butenoic acid, 3-((dimethoxyphosphinyl)oxy)-, (2-chlorophenyl)methyl ester 64011-78-5 CROTONIC ACID, 3-HYDROXY-, o-CHLOROBENZYL ESTER, DIMETHYL PHOSPHATE ENT 25,626 SD 4442 Shell SD-4442