3a(7aH)-benzofurancarboxylic acid, 6,7-dicyano-4-[[(1Z)-ethoxy(phenylamino)methylene]amino]-2,3-dihydro-2-methyl-, ethyl ester InChI=1/C23H24N4O4/c1-4-29-21(28)23-12-15(3)31-20(23)18(14-25)16(13-24)11-19(23)27-22(30-5-2)26-17-9-7-6-8-10-17/h6-11,15,20H,4-5,12H2,1-3H3,(H,26,27 ethyl 4-{[(1Z)-anilino(ethoxy)methylene]amino}-6,7-dicyano-2-methyl-2,3-dihydro-1-benzofuran-3a(7aH)-carboxylate