ester

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Related to Ethyl ester: Methyl ester

ester

 [es´ter]
a compound formed from an alcohol and an acid by removal of water.

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.

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.

ester

a compound formed from an alcohol and an acid.

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.

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.

More discussions about ester
References in periodicals archive ?
There are four cis-trans isomers for both methyl and ethyl esters, which is due to the structural peculiarity (two double bonds with different substitutions) of the decadienoic acid.
:H NMR spectrum of the a-methylene groups of the long-chain ethyl esters should present a signal in the region between 4.00 and 4.40 ppm as quadruplet (characteristic of ethyl esters), while the spectrum of oils showed signals associated with the [alpha]-methylene groups of the triacylglycerides (doublet of doublets) [33].
Butterfield, "Elevation of brain glutathione by [gamma]-glutamylcysteine ethyl ester protects against peroxynitrite-induced oxidative stress," Journal of Neuroscience Research, vol.
Enzymatic transesterification has certain advantages over chemical transesterification, comprising easy recovery of glycerol, transesterification of glycerides with high free fatty acid contents, less energy intensive, which transforms the process for ethyl esters production into a cleaner process (BAJAJ et al., 2010).
While these experiments provided insight into the polymer and monomer's H-bonding environment, additional 2D NMR experiments were required to determine which ethyl ester was active in esterification.
The chemical process is known as transesterification and consists of treating bio oils, with reactants (methanol or ethanol) to obtain a methyl or ethyl ester and glycerin.
Mohammad I Al-Widyan et al (2002) studied the use of ethyl ester of waste vegetable oil and diesel blends in proportions of 75/25, 50/50, 25/75 as fuel in a naturally aspirated direct injection diesel engine tested at different speeds.
The monosaccharides are pre-column derivatized with 4-aminobenzoic acid ethyl ester by reductive amination to a secondary amine which absorbs at 306 nm.
Top-selling products in the VPX line include NO-Shotgun; CEX creatine ethyl ester; AEX arginine ethyl ester; Hemogex, a growth hormone-releasing peptide antiaging product; Black Pearl ready-to-drink (RTD) and capsules, a libido-enhancing brand; Zero Impact meal replacement bars and powders; and Zero Carb protein powders.
Tests on batches of the drug Viracept, whose generic name is nelfinavir, revealed higher than normal quantities of methane sulfonic acid ethyl ester.
Under the brand name Omevital, and available in ethyl ester and triglyceride forms, the new range of marine-origin oils delivers products of outstanding quality and purity, manufactured in accordance with pharmaceutical GMP standards.
(9) found that methylbenzylnitrosamine, nitrososarcosine ethyl ester, and other secondary amines induced carcinoma of the esophagus in rats.