ester

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ester

 [es´ter]
a compound formed from an alcohol and an acid by removal of water.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

es·ter

(es'tĕr),
An organic compound containing the grouping, -X(O)-O-R (X = carbon, sulfur, phosphorus, etc.; R = radical of an alcohol), formed by the elimination of H2O between the -OH of an acid group and the -OH of an alcohol group; usually written as in ethyl acetate (from acetic acid and ethyl alcohol), CH3CO-OC2H5 or CH3COOC2H5.
Farlex Partner Medical Dictionary © Farlex 2012

es·ter

(es'tĕr)
An organic compound containing the grouping, -X(O)-O-R (X = carbon, sulfur, phosphorus; R = radical of an alcohol), formed by the elimination of H2O between the -OH of an acid group and the -OH of an alcohol group.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

ester

a compound formed from an alcohol and an acid.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

es·ter

(es'tĕr)
An organic compound containing the grouping, -X(O)-O-R (X = carbon, sulfur, phosphorus; R = radical of an alcohol), formed by the elimination of H2O between the -OH of an acid group and the -OH of an alcohol group.
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about ester

Q. Does anyone know an over the counter alternative to Lovaza, omega-3 acid ethyl esters? too expensive at Dr

A. there are all sort of companies that sell Omega-3, i buy from a company named Alsepa, but there are dozens of companies. but don't be tempted to buy a very cheap one, because they can be less purified.

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References in periodicals archive ?
In its [sup.1]H NMR spectrum, two three-proton singlets at [delta] 2.12 and 1.95 corresponding to two methyl groups and in the [sup.13]C NMR spectrum two carbonyl signals at 170.1 and 169.9 clearly indicated the attachment of two acetyloxy groups in the molecule.
(E,E) 1-(Acetyloxy) 6-ethoxy 3,5-hexadiene-2-one (4a'): Yield = 44%; colorless oil; [R.sub.f] = 0.3 (PE-EtOAc, 8:2).