PROBLEM TO BE SOLVED: To provide an oxygen-containing secondary alkanethiol capable of providing perfumery or foods and drinks with meat, coffee, and sesame-like aromas having a fragrant roasted feeling, and a tropical fruits-like aroma, and to provide a perfume composition containing the compound as an active ingredient.SOLUTION: Provided are a perfume composition containing an oxygen-containing secondary alkanethiol represented by a formula (1) as an active ingredient, and the oxygen-containing secondary alkanethiol represented by the formula (1). [In the formula (1), Rand Rare alkyl groups having 1 to 5 carbon atoms and Rs represent alkyl groups having 1 to 3 carbon atoms, which may be the same or different, or two Rs together represent an alkylene group having 2 or 3 carbon atoms, where the alkylene group may contain a plurality of methyl or ethyl groups, hydroxy groups, and hydroxymethyl groups.]SELECTED DRAWING: None