1138-15-4 1H-Imidazole, 1-(1-oxo-3-phenyl-2-propenyl)-, (E)- Imidazole, 1-cinnamoyl-, (E)- Imidazole, 1-cinnamoyl-, trans- N-trans-Cinnamoylimidazole NSC83261 trans-Cinnamoylimidazole