The two crossword solutions for the term 'Compound Used in Perfume' are KETONE (6 letters) and Acetal (6 letters). Ketones are organic compounds that contain a carbonyl group, which is a carbon atom double-bonded to an oxygen atom. Acetals are organic compounds that contain two or more ether groups, which are molecules with two oxygen atoms connected by a single bond. Both ketones and acetals are used as fragrances in perfumes.