A geometrical isomer composition excellent in odor and in chemical resistance, which is applicable to a base material containing a strongly alkaline chemical or a strongly acidic chemical, which can suppress the deterioration with time and the color change of the base material in the case that the material is exposed to light, and which also have highly tasteful and unique fruity floral fragrance. A geometrical isomer composition containing 93 to 99% by weight of optically active trans-1-(2,2,6-trimethylcyclohexyl)-2-buten-1-one represented by Formula-1 or a mixture thereof and 7 to 1% by weight of optically active cis-1-(2,2,6-trimethylcyclohexyl)-2-buten-1-one represented by Formula-2 or a mixture thereof is, respectively, used.
一种气味和耐
化学性极佳的几何异构体组合物,适用于含有强碱性
化学物质或强酸性
化学物质的基料,在基料受光照射的情况下,可抑制基料随时间的推移而变质和变色,并具有高品味和独特的花果香味。使用的几何异构体组合物分别含有以重量计 93%至 99%的光学活性反式-1-(2,2,6-三甲基环己基)-
2-丁烯-1-酮(以式-1 表示)或其混合物,以及以重量计 7%至 1%的光学活性顺式-1-(2,2,6-三甲基环己基)-
2-丁烯-1-酮(以式-2 表示)或其混合物。