出典:Wikipedia
出典:『Wikipedia』 (2011/05/13 16:08 UTC 版)
Rose oxide is an organic compound of the pyran class and the monoterpene class and a fragrance found in roses and rose oil. The compound has both a cis- and a trans-isomer, each with a (+)- and (−)-stereoisomer, but only the (−)-cis isomer (odor treshhold 0.5 ppb) is responsible for the typical rose (floral green) fragrance. Rose oxide also contributes to the flavor of some fruits such as lychee and Gewürztraminer.