(3Z)-3-benzylidene-2-benzofuran-1(3H)-one 1(3H)-isobenzofuranone, 3-(phenylmethylene)-, (3Z)- InChI=1/C15H10O2/c16-15-13-9-5-4-8-12(13)14(17-15)10-11-6-2-1-3-7-11/h1-10H/b14-10