(2Z)-2-[4-(acetyloxy)benzylidene]-3-oxo-2,3-dihydro-1-benzofuran-6-yl acetate 3(2H)-benzofuranone, 6-(acetyloxy)-2-[[4-(acetyloxy)phenyl]methylene]-, (2Z)- InChI=1/C19H14O6/c1-11(20)23-14-5-3-13(4-6-14)9-18-19(22)16-8-7-15(24-12(2)21)10-17(16)25-18/h3-10H,1-2H3/b18-9