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The title mol­ecule, C 18 H 13 NO 4 , shows a dihedral angle between the terminal acetyl group (r.m.s. deviation = 0.0081 Å) and remaining non-H atoms (r.m.s. = 0.0734 Å) of 53.45 (7)°. The configuration about the central olefinic bond is  Z  and overall the mol­ecule has a U-shaped conformation. Supra­molecular chains along the  b -axis direction are found in the crystal structure. These are stabilized by (C=O)⋯π(ring centroid of the 1,3-oxazole ring) inter­actions [3.370 (2) Å].

4-{[(4Z)-5-Oxo-2-phenyl-4,5-dihydro-1,3-oxazol-4-ylidene]methyl}phenyl acetate