Santalen is a bicyclic sesquiterpene hydrocarbon primarily found in various essential oils, particularly in the oil of sandalwood. It contributes to the characteristic aroma of these oils, making it significant in perfumery and aromatherapy. Santalen is known for its woody, sweet scent, which is often associated with calming and relaxing properties. In culinary applications, it can enhance flavor profiles in certain dishes, particularly in Asian cuisines. Its chemical structure allows it to interact with olfactory receptors, providing sensory characteristics that are valued in both food and fragrance industries.