Coumarins

Coumarin () or '2H-chromen-2-one' is an aromatic organic chemical compound with formula . Its molecule can be described as a benzene molecule with two adjacent hydrogen atoms replaced by an unsaturated lactone ring , forming a second six-membered heterocycle that shares two carbons with the benzene ring. It belongs to the benzopyrone chemical class and is considered a lactone.

molecule resembling two gallic acid molecules assembled "head to tail" and bound by two lactone links and a C–C bond

Umbelliferone, also known as 7-hydroxycoumarin, hydrangine, skimmetine, and '''beta-umbelliferone''', is a natural product of the coumarin family.

Auraptene is a natural bioactive monoterpene coumarin ether. It was first isolated from members of the genus Citrus.

Aesculetin (also known as esculetin, 6,7-dihydroxycoumarin and cichorigenin) is a derivative of coumarin. It is a natural lactone that derives from the intramolecular cyclization of a cinnamic acid derivative.

Osthol, or osthole, is a chemical compound which is a derivative of coumarin. It is found in a variety of plants including Cnidium monnieri, Angelica archangelica and Angelica pubescens.

Scoparone is a natural organic compound with the molecular formula C11H10O4. It is found in the Chinese herb Artemisia scoparia and has been studied for its potential pharmacological properties including immunosuppression and vasorelaxation.

any organic compound having 1-benzopyran-2-one ring system

Ferujol is a compound in the coumarin family, isolated from Ferula jaeschkeana.

thumb|Chemical structure of urolithin A. Urolithins are microflora metabolites of dietary ellagic acid derivatives, such as ellagitannins. They are produced in the gut, and found in the urine in the form of urolithin B glucuronide after absorption of ellagitannins-containing foods, such as pomegranate. During intestinal metabolism by bacteria, ellagitannins and punicalagins are converted to urolithins, which have unknown biological activity in vivo.

Esuprone is an experimental drug candidate being investigated as an antidepressant. It acts as a monoamine oxidase A (MAO-A) inhibitor.

natural phenol found in numerous fruits

Chemical reaction

Fraxin is a glucoside of fraxetin. Fraxin extracted from ash bark exhibits fluorescence in aqueous solution. A blue/green luminescence can be observed by soaking ash twigs in hot water.

Geiparvarin is a coumarin derivative found in the leaves of the Australian Willow (Geijera parviflora). It is a monoamine oxidase inhibitor.

Bucumolol is a beta-adrenergic antagonist.

Siderin is a coumarin derivative produced by Aspergillus versicolor, an endophytic fungus found in the green alga Halimeda opuntia in the Red Sea.

Isofraxidin is a chemical compound found in a variety of plants including Eleutherococcus senticosus.

3-Azidocoumarin is an organic compound that is used in the area of bioconjugation. It is a derivative of coumarin, a natural product and precursor for the widely used Coumadin. Azidocoumarin has emerged as a widely applicable labeling agent in diverse biological systems. In particular, it participates in the aptly named click reaction with alkynes. Bioconjugation involves the labeling of certain cellular components and is applicable to fields such a proteomics and functional genomics with a detachable, fluorescent tag.