InChI=1/C8H12NO4P/c1-3-13-14(2,10)7(6-9)8-11-4-5-12-8/h3-5H2,1-2H ethyl [cyano(1,3-dioxolan-2-ylidene)methyl]methylphosphinate phosphinic acid, (cyano-1,3-dioxolan-2-ylidenemethyl)methyl-, ethyl ester