Compounds of formula ##STR1## having a double bond in one of the positions indicated by the dotted lines and wherein symbol R represents a hydrogen atom or a methyl radical, are useful ingredients for the preparation of perfuming compositions and perfumed articles, to which they impart odor notes of the woody-amber type.
式子为##STR1##的化合物,其中虚线所示位置有双键,符号R代表氢原子或甲基基团,是制备调香组合物和香
水制品的有用成分,它们赋予这些产品木质琥珀类气味。