n-Butyl α-Cyano-4-[2-(4-pyridyl)ethenyl]cinnamate

The crystal structure of the title compound, C₂₁H₂₀N₂O₂, is compared with related compounds. There are two crystallographically independent molecules, which form two respective stacking columns along the a axis. Neither stacking modes are favorable for a [2 + 2] photopolymerization reaction.

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