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Acid, gallic

Gallic acid has a limited use as a dyestuffs intermediate and as a source of medicinals. [Pg.185]

Gallein [2103-64-2] Gallex project Galliant Gallic acid... [Pg.431]

To a cold solution of 80 g. (2 moles) of sodium hydroxide in 500 cc. of water in a i-l. flask is added 50 g. (0.266 mole) of gallic acid. The flask is immediately tightly stoppered (Note i), and the mixture shaken occasionally until all the acid has dissolved 89 g. (67 cc.) of methyl sulfate (0.71 mole) is then added (Note 2) and the flask is shaken for twenty minutes, being cooled by means of cold water in order that the temperature does not rise above 30-35°. Occasionally the stopper is raised to release any pressure. A second portion of 89 g. of methyl sulfate is then added and shaking continued for ten minutes longer. During this second addition the temperature may rise to 40-45°. [Pg.96]

Trimethylgallic acid is most conveniently prepared by methylating gallic acid with methyl sulfate. It has also been obtained... [Pg.97]

ChemicalDesignations-i(yntr nu Gallic acid monohydrate 3,4,5-Trihydroxybenzoicacid Chemical Formula 3,4,5-(HO)3CjHiCOOH HiO. [Pg.187]

Reproducibility was provided by the calotype" process, patented in 1841 by the English landowner W. H. Fox Talbot, which used semi-transparent paper treated with Agl and a developer , gallic acid. This produced a negative from which any number of positive prints could subsequently be obtained. Furthermore it embodied the important discovety of the latent image which could be fully developed later. Even with Talbot s very coarse papers, exposure times were reduced to a few minutes and portraits became feasible, even if uncomfortable for the subject. [Pg.1186]

In the rosary pea Abrus precatorius L. Trigollenine as well as its gallic acid ester Precatorine (209) is found (71P195) (Scheme 69). 1-Carboxymethyl-nicotinic acid (210) was isolated as a colorless solid from the marine sponge Anthosigmella cf. raromicrosclera as a cysteine protease inhibitor (98JNP671). This compound was first synthesized in 1991. The sodium... [Pg.127]

Methyl-gallusathersaure, /. 0-methylgallic acid, methyl ether of gallic acid, -grtin, n. methyl green, -hydriir, n. methyl hydride, methane. [Pg.297]

Gallic acid propyl ester N-propyl gallate propyl 3,4,5-trihydroxy-benzoate... [Pg.21]

See also sugars gallic acid. See propyl gallate gasoline, 228... [Pg.254]

See other pages where Acid, gallic is mentioned: [Pg.185]    [Pg.335]    [Pg.384]    [Pg.1120]    [Pg.1019]    [Pg.363]    [Pg.431]    [Pg.514]    [Pg.1019]    [Pg.550]    [Pg.550]    [Pg.40]    [Pg.387]    [Pg.82]    [Pg.250]    [Pg.187]    [Pg.187]    [Pg.200]    [Pg.201]    [Pg.295]    [Pg.355]    [Pg.1019]    [Pg.329]    [Pg.169]    [Pg.169]    [Pg.293]    [Pg.418]    [Pg.899]    [Pg.135]    [Pg.761]    [Pg.405]    [Pg.506]    [Pg.868]    [Pg.124]    [Pg.124]    [Pg.390]    [Pg.392]    [Pg.392]    [Pg.161]   
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4-O-methyl gallic acid

Acid Acetic Gallic

Biosynthesis of gallic acid

Catechin, gallic acid ester

Cinnamic acids gallic acid from

Conversion into gallic acid

Esters complex gallic acid

Esters of gallic acids

Fuses gallic acid

Gallic

Gallic Acid Derivatives and Hydrolyzable Tannins

Gallic Acid, Propyl Ester

Gallic acid (3,4,5-Trihydroxybenzoic

Gallic acid 3.5- dimethyl ether

Gallic acid 4- glucopyranoside

Gallic acid 4-O-P-D-

Gallic acid antioxidative activity

Gallic acid biological activities

Gallic acid biosynthesis

Gallic acid catechu

Gallic acid derivatives

Gallic acid design

Gallic acid dodecyl ester

Gallic acid equivalents

Gallic acid esters

Gallic acid ethyl ester

Gallic acid eucalyptus

Gallic acid gallocatechin

Gallic acid glycosides

Gallic acid methyl ester

Gallic acid monohydrate

Gallic acid octyl ester

Gallic acid profiling

Gallic acid reactions

Gallic acid structure

Gallic acid techniques based

Gallic acid witch hazel

Gallic acid, autoxidation

Gallic acid, first analysis

Gallic-/?-coumaric acid

Gallic-sinapic acid

Metabolites of Gallic Acid

Origin Gallic acid

Origin Gallic acid esters

Phenolics gallic acid

Polyphenolic compounds gallic acid esters

Preparation of Gallic Acid from Tea Leaves and other Tannin Containing Materials

Quinic and Gallic Acids

SUBJECTS gallic acid

Tannin activity gallic acid

Tannins from gallic acid

Tannins gallic acid based

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