Compounds having formula (I) in which n is 1, 2 or 3 and R1 to R6 represent, independently, branched or unbranched, substituted or unsubstituted alkyl-, alkenyl-, alkinyl-, cycloalkyl-, cycloalkenyl- or aromatic-radicals or hydrogen wherein these radicals may in addition contain one or more —O— and/or (a)—groups, whereby one or two rings can be built by the combination of the respective R1 to R6 and this/these ring(s) can be further substituted by an alkyl-group, in which X is either O and R7 represents a radical of an alcohol or phenol R7OH, or X is N and R7 represents the radical of an amine R7′R7″NH, whereby R7′ and R7″ represent independently, branched or unbranched, substituted or unsubstituted alkyl-, alkenyl-, alkinyl-, cycloalkyl-, cycloalkenyl- or aromatic radicals or either R7′R7″ may be hydrogen, whereby the amine is a fragrant amine or the amine has more than 9 C atoms, whereby R7 of the alcohol or phenol and R7′ and/or R7″ of the amine, respectively, may further contain at least one remaining part C(OH)R1R2—CR3R4—(CR5R6)n—CO— of formula (I), are useful as precursors for the delivery of odoriferous and/or antibacterial compounds in cosmetic compositions, cosmetic products, air fresheners, hard surface cleaners or laundry products.