ionone

/ˈaɪənoʊn/
noun
  1. A fragrant chemical compound found in essential oils, used in perfumes and flavorings.
    • The sweet scent of violets comes from a compound called ionone.
    • Ionone is added to some candies to give them a violet-like flavor.
    • Perfumers often use ionone to create floral and woody notes in their fragrances.