InChI=1/C14H18N3O2P/c1-2-19-20(18,12-7-4-3-5-8-12)13(11-15)14-16-9-6-10-17-14/h3-5,7-8,16-17H,2,6,9-10H2,1H ethyl [cyano(tetrahydropyrimidin-2(1H)-ylidene)methyl]phenylphosphinate phosphinic acid, [cyano(tetrahydro-2(1H)-pyrimidinylidene)methyl]phenyl-, ethyl ester