(3E)-3-(3-phenylprop-2-yn-1-ylidene)-2-benzofuran-1(3H)-one 1(3H)-isobenzofuranone, 3-(3-phenyl-2-propynylidene)-, (3E)- InChI=1/C17H10O2/c18-17-15-11-5-4-10-14(15)16(19-17)12-6-9-13-7-2-1-3-8-13/h1-5,7-8,10-12H/b16-12