Perfume compositions and perfumed products as well as the grant of the nature of smell, improvement, method of enhancing or reforming

摘要

1,3-undecadiene-5-yne (I) is used as a perfuming ingredient in perfume compsns. and perfumed articles. (I) is in the form of one of its (E) or (Z) isomers or mixts. of these, esp. mixts. contg. at least 50 wt.% (E)-1,3-undecadiene-5-yne.