(3Z)-2-oxo-3-(5-oxofuran-2(5H)-ylidene)propyl benzoate 2(5H)-furanone, 5-[3-(benzoyloxy)-2-oxopropylidene]-, (5Z)- 7-Benzoyloxy-6-oxo-2,4Z-heptadiene-1,4-olide Benzoic acid 2-oxo-3-(5-oxo-5H-furan-2-ylidene)-propyl ester InChI=1/C14H10O5/c15-11(8-12-6-7-13(16)19-12)9-18-14(17)10-4-2-1-3-5-10/h1-8H,9H2/b12-8