(2Z)-2-benzylidene-4,7-dimethyl-1-benzofuran-3(2H)-one 3(2H)-benzofuranone, 4,7-dimethyl-2-(phenylmethylene)-, (2Z)- InChI=1/C17H14O2/c1-11-8-9-12(2)17-15(11)16(18)14(19-17)10-13-6-4-3-5-7-13/h3-10H,1-2H3/b14-10