The invention mainly relates to the use of special urea, thiourea, carbamate, thiocarbamate and guanidine based on new menthyl structure and corresponding mixtures thereof or with other compounds as flavor substances or flavor substance mixtures to generate, give, modify and/or increase fresh flavor odor nuance. The invention further relates to a special composition, product or semi-finished product containing the compound and to a method for generating, giving, modifying and/or increasing a special flavor. At last, the invention further relates to the compound and corresponding mixtures thereof.