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A fragrant crystalline compound, C9H6O2, present in tonka beans and produced synthetically for use as a fragrance. Coumarin has been banned as a food additive in the United States because it can be toxic in large amounts.

[French coumarine, from coumarou, tonka bean tree, from Spanish coumarú, from Portuguese cumaru, from Tupí cumarú, commaru.]

cou′ma·ric (-mər-ĭk) adj.


(ˈkuːmərɪn) or


(Elements & Compounds) a white vanilla-scented crystalline ester, used in perfumes and flavourings and as an anticoagulant. Formula: C9H6O2
[C19: from French coumarine, from coumarou tonka-bean tree, from Spanish cumarú, from Tupi]
ˈcoumaric, ˈcumaric, coumarilic adj


(ˈku mə rɪn)

a fragrant crystalline compound, C9H6O2, used chiefly in soaps and perfumery.
[1820–30; < French coumarine=coumar(ou) tonka-bean tree (< Sp cumarú < Portuguese < Tupi cumaru) + -ine -in1]
References in periodicals archive ?
The interaction of the H2L ligand with salicyaldehyde and naphthaldehyde afforded coumarin and benzocoumarin derivatives, respectively.
Many compounds that contain the coumarin moiety exhibit useful and diverse pharmaceutical and biological activities, and there has been a growing interest in their synthesis (10-12).
Cinnamon produced in China is less desirable because it contains a compound called coumarin that may be toxic to the liver in very large amounts.
It seems that quantitatively some phenolic compounds increased and others, such as catechein, coumarin, and cinnamic, found absent by irradiation treatment.
Phytochemical screening showed presence of different chemical compounds such as alkaloids, tannins, saponins, phlobotannins, quinones, coumarin and flavonoids.
A C1173T dimorphism in the VKORC1 gene determines coumarin sensitivity and bleeding risk.
2013) established a GC-MS method for the quantitative determination of eight coumarins including coumarin, isopsoralen, psoralen, xanthotoxin, bergapten, osthole, imperatorin, and oxypeucedanin in rat plasma after oral administration of a mixture of compounds at a dose of 10 mg/kg of each analyte.
25%, a salicylate, and coumarin anticoagulant, which is also classified as a stimulant with heat units from 40,000 to 100,000.
Tenders are invited for Procurement of COUMARIN CRYSTALS ( IS 4271-1967 )
The major chemical constituents of the fruits of Berberis integerrima (barberry), of the Berberidaceae family, include coumarin, ascorbic acid, berberine, caffeic acid, [beta]-carotene, flavonoids, malic acid, palmatine, carbohydrates, tannin, and ursolic acid.
Column fractions of solanum incanum were subjected to various qualitative phytochemical tests like carbohydrates, tannin, saponin, alkaloid, quinines, glycosides, terpenoids, phenols and coumarin as per standard procedure (13,14).