InChI=1/C12H21N2O5P/c1-4-7-14-12(17-9-8-15)11(10-13)20(16,18-5-2)19-6-3/h4,14-15H,1,5-9H2,2-3H3/b12-11 diethyl [(E)-2-(allylamino)-1-cyano-2-(2-hydroxyethoxy)vinyl]phosphonate phosphonic acid, [(E)-1-cyano-2-(2-hydroxyethoxy)-2-(2-propenylamino)ethenyl]-, diethyl ester