Compounds of formula (I)wherein R is hydrogen and the bond between C-2 and C-3 together with the dotted line represents a double bond, or R is —CH2— and together with C-2 and C-3 represents a cyclopropane ring and the bond between C-2 and C-3 together with the dotted line represents a single bond, having floral rosy odor notes, their use as fragrance and perfumed products comprising them.