(E)-1,3-Diphenyl-2-propen-1-one (E)-Benzylideneacetophenone (E)-Chalcone 2-Propen-1-one, 1,3-diphenyl-, (E)- 614-47-1 Benzylidene acetophenone CCRIS 3778 EINECS 210-383-8 Phenyl (E)-2-phenylethenyl ketone Phenyl trans-styryl ketone trans-Benzalacetophenone trans-Benzylideneacetophenone trans-Chalcone