Coumarin is a type of aromatic compound found in large quantities in cherry leaves and tonka beans. It has a powdery sweetness similar to vanilla, and the scent of sakura mochi. It is often used in cherry blossom-flavored sweets, beverages, and scented products, but since coumarin does not have a scent when the leaves are alive, it is not the scent of cherry blossoms but the scent of sakura mochi. Living cherry leaves contain a substance called coumaric acid in the vacuoles, and when they are semi-dried or salted, the cells die and the vacuoles break, and when they come into contact with oxygen outside the vacuoles, the coumaric acid is separated, coumarin is produced, and the aroma is released for the first time. In 1882, Houbigant released the perfume Fougere Royale, which used coumarin, and this was the first perfume to use synthetic fragrances, revolutionizing the perfume industry. Coumarin is also used in lIBERTA PERFUME's Soft Oriental, which is an oriental type characterized by a soft and gentle sweetness.