The present invention primarily relates to the use of one or more stereoisomers of the compound of formula (I) as described herein for modifying and/or enhancing the olfactory impression of one or more fragrances with a lily of the valley scent. The invention further relates to a new mixture comprising or consisting of one or more stereoisomers of the compound of formula (I) as described herein and two or more stereoisomers of the compound of formula (II) as described herein with a weight ratio of the stereoisomers of the compounds of formula (II) as described herein, fragrance compositions comprising or consisting of a mixture as described herein, perfumed products containing mixtures or fragrance composition as described herein, and a process for modifying and/or enhancing the lily of the valley scent of a compound of formula (II) as described herein, respectively for preparing a perfumed product as described herein.
