5,9-Undecadien-2-one, 6,10-dimethyl- 6,10-Dimethyl-undeca-5,9-dien-2-one 6,10-Dimethylundeca-5,9-dien-2-one 689-67-8 AI3-04987 Dihydropseudoionone EINECS 211-711-2 FEMA No. 3542 Geranyl acetone Geranylacetone NSC 406679