pyrogallol


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Related to pyrogallol: purpurogallin

py·ro·gal·lol

 (pī′rō-găl′ôl′, -ōl′, -ŏl′, -gô′lôl′, -lōl′, -lŏl′)
n.
A white, toxic crystalline phenol, C6H3(OH)3, used as a photographic developer and to treat certain skin diseases. Also called pyrogallic acid.


py′ro·gal′lic (-găl′ĭk, -gô′lĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

pyrogallol

(ˌpaɪrəʊˈɡælɒl)
n
(Elements & Compounds) a white lustrous crystalline soluble phenol with weakly acidic properties; 1,2,3-trihydroxybenzene: used as a photographic developer and for absorbing oxygen. Formula: C6H3(OH)3
[C20: from pyro- + gall(ic)2 +-ol1]
ˌpyroˈgallic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

py•ro•gal•lol

(ˌpaɪ rəˈgæl ɔl, -ɒl, -ˈgɔ lɔl, -lɒl)

n.
a white, crystalline, water-soluble, poisonous, solid, phenolic compound, C6H3(OH), obtained by heating gallic acid and water.
[1875–80; pyro- + gall(ic) + -ol1]
py`ro•gal′lic (-ˈgæl ɪk, -ˈgɔ lɪk) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pyrogallol - a toxic white lustrous crystalline phenol used to treat certain skin diseases and as a photographic developer
phenol - any of a class of weakly acidic organic compounds; molecule contains one or more hydroxyl groups
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References in periodicals archive ?
It finds a wide range of applications such as in the production of gallic acid, an intermediate for trimethoprim, pharmaceutical industry, food industry through chemical synthesis of pyrogallol or ester galates which are used as food preservatives, clarification of beer and beverages, manufacture of instant tea, manufacture of coffee flavored drinks, reduction of anti-nutritional effects of tannins in animal feed and high grade leather tanning (5).
Gallic acid, pyrogallol, protocatechuic acid, chlorogenic acid, p-hydroxybenzoic acid, caffeic acid, mangiferin, epicatechin, p-coumaric acid, ferulic acid, ECG, CG, ellagic acid, rutin, quercetin, kaempferol, homogentisic acid, tannic acid, and vanillic acid were used as standards for HPLC analyses.
For the compound bearing two pyrogallol groups in its structure, EGCG, n per OH group ranged from 1.1 to 2.0, being the highest for DPPH and ABTS at pH 7.4.
The reaction was initiated by the addition of 0.2 mM pyrogallol. The oxidation of pyrogallol was measured at 420 nm (UV/visible U-200L Spectrophotometer) for 4 min at intervals of 10 s.
A mixture of 80[micro]L potassium phosphate buffer 100mM (pH 7.0), 40[micro]L of pyrogallol 50mM and 40[micro]L of hydrogen peroxide 125mM was added to 40[micro]L of extract.
Pyrogallol is an important phenol derivative and has been found in natural and synthetic molecules such as gallic acid, tannic acid, humic acid, epicatechin gallate, and epigallocatechin gallate [21-23].
Superoxide anion is involved in auto-oxidation of pyrogallol at alkaline pH (8.5).
The reaction mixture (0.5 mL of enzyme extract,1.5 mL of 0.05 M pyrogallol and 0.5 mL of 1% H2O2) was nurtured at (282 C) temperature.
pumila are flavonoids (kaempferol, myricetin, naringin, and rutin) and phenolics compound (gallic acid and pyrogallol).
The chemical shift of C1' at 130 to 132 ppm for the catechol B-rings and 132 to 135 ppm for the pyrogallol B-rings was also observed, indicating the coexistence of the catechol B-rings and pyrogallol B-rings in the tannins from the bark alkaline extractives obtained from autoclave extraction.
A 500 L volume of 50 mM pyrogallol and 100 L of enzyme extract were mixed in a 1 ml Jenway 6705 cuvette (Bibby Scientific Limited, Staffordshire, UK).