(3E)-3-benzylidenetetrahydro-2H-pyran-2-one 2H-pyran-2-one, tetrahydro-3-(phenylmethylene)-, (3E)- InChI=1/C12H12O2/c13-12-11(7-4-8-14-12)9-10-5-2-1-3-6-10/h1-3,5-6,9H,4,7-8H2/b11-9