A method of providing to a fragrance application a musky odor, comprising the addition thereto of at least one compound according to the formula I in which R1 is selected from H and CH3; R2, R3 are selected from the possibilities that (a) both are CH3; and (b) R2 and R3 together form a single bond (as indicated by the broken line); and n is an integer selected from 1, 2, 3, and 4. The compounds are useful in the complete range of fine and functional fragrance applications.