(I) Use of a compound of formula (I) as a perfume potentiator compound in perfume composition is provided. Preferably the perfume composition is encapsulated in a core-shell microcapsule, in particular, an aminoplast microcapsule or a starch microcapsule. A perfume composition comprising a compound of formula (I) as a perfume potentiator； a method of potentiating the performance of a perfume composition by admixing to the perfume composition a compound of formula (I)； and a method of potentiating the performance of an encapsulated perfume composition by admixing a compound according to formula (I) to a perfume composition that will be encapsulated are also provided.
