coumarin

(redirected from Coumarins)
Also found in: Dictionary, Encyclopedia.
Related to Coumarins: Tannins, Flavonoids

coumarin

 [koo´mah-rin]
1. a principle extracted from the tonka bean, from which several anticoagulants are derived that inhibit hepatic synthesis of vitamin K–dependent coagulation factors.
2. any of these derivatives.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

cou·ma·rin

(kū'mă-rin),
1. A general descriptive term applied to anticoagulants and other drugs derived from dicumarol, a component of the Tonka bean.
2. A fragrant neutral principle obtained from the Tonka bean, Dypterix odorata, and made synthetically from salicylic aldehyde; it is used to disguise unpleasant odors.
[coumarou, native name of Tonka bean]
Farlex Partner Medical Dictionary © Farlex 2012

coumarin

(ko͞o′mər-ĭn)
n.
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.

cou′ma·ric (-mər-ĭk) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

cou·ma·rin

(kū'mă-rin)
Fragrant neutral principle obtained from the Tonka bean, Dypterix odorata, and also made synthetically from salicylic aldehyde; used to disguise unpleasant odors.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

cou·ma·rin

(kū'mă-rin)
A general descriptive term applied to anticoagulants and other drugs derived from dicumarol.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
A new benzofuran derivative glycoside and a new coumarin glycoside from roots of Heracleum dissectum Ledeb.
After the execution period, the following variables were analyzed: height of the aerial part (cm), leaf area ([cm.sup.2]), dry mass of leaves and branches (g), total dry mass (g), and coumarin content of the apical, middle, and basal segments of the plant tissue (mg [g.sup.-1]).
Research conducted in 1976 and 1983 suggests that the coumarins in angelica have immune-enhancing activities and will prove of importance in offering protection against the growth and spread of tumours.
These results are in accord with already reported results of phytochemical studies of 13 medicinal plants of Margalla hills and surrounding by investigated the qualitative analysis of phytochemical components including saponins, alkaloids, quinones, coumarins, flavonoids, tannins, phlobatannins, terpenoids and cardiac glycosides.
Calculations of water solubility (LogS) show that coumarin-5 has the lowest LogS value (less water soluble), while chalepin coumarin has the highest value, in accordance with logP calculations.
O'kennedy, The Chemistry and Occurrence of Coumarins. Coumarins: Biology, Applications and Mode of Action, p.
The coumarin derivative (compound 2) was selected here because of its high emission efficiency, facile preparation procedure, excellent water solubility, and biocompatibility.
Spadaro et al., "Antimicrobial and antioxidant activities of coumarins from the Roots of Ferulago campestris (Apiaceae)," Molecules, vol.
In conclusion, among the coumarin compounds that we successfully synthesized, compounds I c, I d, II c and II d had a strong electron-withdrawing group (-CH2Cl, -Cl, -CN and -CF3) in the phenyl ring with the highest cytotoxic activity against the cancer cell lines tested.
Bioassay-guided isolation of sesquiterpene coumarins from Ferula narthex Bioss: a new anticancer agent.
Therefore, natural antioxidants such as phenolic, flavonoids, tannins, xanthons, coumarins, curcumanoids and terpenoids should be used (Jeong et al., 2004).