light yellow low melting crystalline mass or
trans-4-Phenyl-3-buten-2-one is used in various synthetic preparations.
ChEBI: The trans-isomer of benzylideneacetone. It acts as an inhibitor of the enzyme phospholipase A2 (EC 3.1.1.4) of insects like diamond back moth.
trans-4-Phenyl-3-buten-2-one forms trans-4-(4-hydroxyphenyl)-3-buten-2-one (4-OH-PBO) as a metabolite when incubated with liver microsomes of untreated rats in the presence of NADPH.
Mutation data reported. Aflammable liquid. When heated to decomposition it emitsacrid smoke and irritating vapors.