2,6-Dimethyl-2,5-heptadien-4-onePhoroneDiisopropylidene acetonePhoronesym-Diisopropylideneacetone2,6-Dimethyl-2,5-heptadien-4-one2,6-dimethylhepta-2,5-dien-4-one2,6-二甲基-2,5-庚二烯-4-酮佛尔酮对称-二异亚丙基丙酮Diisopropylidene acetoneDiisobutenyl ketones-Diisopropylidene acetone2,5-Heptadien-4-one, 2,6-dimethyl-sym-Diisopropylidene acetonephorone