4'-Nitrochalcone oxide 41069-00-5 CCRIS 2235 Methanone, (4-nitrophenyl)(3-phenyloxiranyl)-, trans- Propiophenone, 2,3-epoxy-4'-nitro-3-phenyl-, trans- trans-2,3-Epoxy-4'-nitro-3-phenylpropiophenone trans-4'-Nitrochalcone oxide