Coumarin () or 2H-chromen-2-one is an aromatic organic chemical compound with formula C9H6O2. Its molecule can be described as a benzene molecule with two adjacent hydrogen atoms replaced by an unsaturated lactone ring −(CH)=(CH)−(C=O)−O−, 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.
Coumarin is a colorless crystalline solid with a sweet odor resembling the scent of vanilla and a bitter taste. It is found in many plants, where it may serve as a chemical defense against predators. While coumarin is not an anticoagulant, its 3-alkyl-4-hydroxy derivatives, such as the fungal metabolite dicoumarol, inhibit synthesis of vitamin K, a key component in blood clotting. A related compound, the prescription drug anticoagulant warfarin, is used to inhibit formation of blood clots, deep vein thrombosis, and pulmonary embolism. |
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InChI=1S/C5H6O5/c6-3(5(9)10)1-2-4(7)8/h1-2H2,(H,7,8)(H,9,10) |
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Bronsted acid
A molecular entity capable of donating a hydron to an acceptor (Bronsted base).
(via oxoacid )
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fundamental metabolite
Any metabolite produced by all living cells.
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View more via ChEBI Ontology
2-Ketoglutaric acid
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KEGG COMPOUND
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alpha-Ketoglutaric acid
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KEGG COMPOUND
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α-ketoglutaric acid
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NIST Chemistry WebBook
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Oxoglutaric acid
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KEGG COMPOUND
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1705689
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Reaxys Registry Number
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Reaxys
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328-50-7
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CAS Registry Number
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KEGG COMPOUND
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328-50-7
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CAS Registry Number
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NIST Chemistry WebBook
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328-50-7
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CAS Registry Number
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ChemIDplus
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602480
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Gmelin Registry Number
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Gmelin
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17439666
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PubMed citation
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Europe PMC
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18990406
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PubMed citation
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Europe PMC
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20155414
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PubMed citation
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Europe PMC
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20200292
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PubMed citation
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Europe PMC
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20583149
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PubMed citation
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Europe PMC
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20636327
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PubMed citation
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Europe PMC
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21964641
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PubMed citation
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Europe PMC
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