(2Z,4Z)-cycloocta-2,4-dien-1-one 2,4-cyclooctadien-1-one, (2Z,4Z)- InChI=1/C8H10O/c9-8-6-4-2-1-3-5-7-8/h1-2,4,6H,3,5,7H2/b2-1-,6-4