Coumarin is a fragrant organic compound found in many plants, particularly in tonka beans, cinnamon, and sweet clover. It has a sweet, vanilla-like aroma and is often used in perfumes and flavorings. Coumarin is also studied for its potential medicinal properties, including anti-inflammatory and anticoagulant effects. In addition to its natural sources, coumarin can be synthesized in laboratories. However, it is important to note that high levels of coumarin can be toxic to the liver in humans and some animals. As a result, its use in food products is regulated in several countries.