19285-67-7 4-01-00-03431 (Beilstein Handbook Reference) BRN 1813698 Diethyl (diethoxyphosphinyl-2,2-dichloro)vinyl phosphate Phosphonic acid, (2,2-dichloro-1-((diethoxyphosphinyl)oxy)ethenyl)-, diethyl ester Phosphoric acid, (1-diethoxyphosphinyl-2,2-dichlorovinyl) diethyl ester