A compound of formula (I); its structure represented with dotted lines being either cis- or trans-double bonds wherein: A) R.sub.1 represents a hydrogen atom and R.sub.2 represents an OH, OCH.sub.3 or OC.sub.2H.sub.5 group while either a) R.sub.4, R.sub.5, and R.sub.7 each represent hydrogen atoms with R.sub.3, R.sub.6, and R.sub.8 each representing methyl radicals; b) R.sub.4, R.sub.6, and R.sub.7 each represent hydrogen atoms with R.sub.3, R.sub.5, and R.sub.8 each representing methyl radicals; or c) R.sub.3, R.sub.6 and R.sub.7 each represent hydrogen atoms with R.sub.4, R.sub.5, and R.sub.8, each representing methyl radicals; or B) R.sub.7 represents a hydrogen atom; R.sub.1, R.sub.4, and R.sub.6 each represent hydrogen atoms with R.sub.2, R.sub.3, and R.sub.5 each representing a methyl radical while R.sub.8 represents OH, OCH.sub.3 or OC.sub.2H.sub.5 groups when dotted lines are present; when dotted lines are absent, R.sub.8 represents either OCH.sub.3 or OC.sub.2H.sub.5 groups. At least one compound is applied as an odorant agent.