2-Propenoic acid, 2-cyano-3,3-diphenyl-, 1,1'-[2,2-bis[[(2-cyano-1-oxo-3,3-diphenyl-2-propen-1-yl)oxy]methyl]-1,3-propanediyl] ester

2-Propenoic acid, 2-cyano-3,3-diphenyl-, 1,1'-[2,2-bis[[(2-cyano-1-oxo-3,3-diphenyl-2-propen-1-yl)oxy]methyl]-1,3-propanediyl] ester