The invention relates to the use of 2,5-diacetyl-3a,5,6,6a-tetrahydro-6a-hydroxy-2,3a,5-trimethylfuro[2,3-d]-1,3-dioxole (diacetyl trimer) of the formula in the form of one of its stereoisomers or in the form of a mixture consisting of or containing two or more of the stereoisomers (i) as an odoriferous or aromatic substance, (ii) for imparting, intensifying and/or modifying a creamy and/or fatty sensation in the mouth, (iii) for imparting, intensifying and/or modifying a sweet, buttery, cream-like and/or creamy flavour, and/or (iv) for masking a bitter flavour. The invention furthermore relates to corresponding aromatic compositions as well as compositions which serve for nutrition, oral hygiene, consumption for pleasure or for oral pharmaceutical use.