py·ro·gal·lol

(pī′rō-găl′ôl′, -ōl′, -ŏl′, -gô′lôl′, -lōl′, -lŏl′)

A white, toxic crystalline phenol, C₆H₃(OH)₃, used as a photographic developer and to treat certain skin diseases. Also called pyrogallic acid.

[pyro- + gall(ic acid) + -ol.]

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)

(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.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

pyrogallol - a toxic white lustrous crystalline phenol used to treat certain skin diseases and as a photographic developer

pyrogallic acid

phenol - any of a class of weakly acidic organic compounds; molecule contains one or more hydroxyl groups

Mentioned in

References in periodicals archive

(1) UE, unit of enzyme, the amount of enzyme capable of inhibiting the rate of pyrogallol oxidation by 50%.

Effects of dietary Spirulina on antioxidant status, lipid profile, immune response and performance characteristics of broiler chickens reared under high ambient temperature

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.

Free Radical-Scavenging, Anti-Inflammatory, and Antibacterial Activities of Water and Ethanol Extracts Prepared from Compressional-Puffing Pretreated Mango (Mangifera indica L.) Peels

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.

Relevance and Standardization of In Vitro Antioxidant Assays: ABTS, DPPH, and Folin-Ciocalteu

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.

Swimming training attenuates oxidative damage and increases enzymatic but not non-enzymatic antioxidant defenses in the rat brain

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.

Alterations in antioxidant metabolism in coffee leaves infected by Cercospora coffeicola/Alteracoes no metabolismo antioxidante de folhas de cafeeiro infectadas por Cercospora coffeicola

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].

Improvement of dispersion of carbon nanotubes in epoxy resin through pyrogallol functionalization

Superoxide anion is involved in auto-oxidation of pyrogallol at alkaline pH (8.5).

Evaluation of antioxidants in patients with chronic obstructive pulmonary disease (COPD)

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.

PHYSIOLOGICAL CHANGES AGAINST MELOIDOGYNE INCOGNITA IN RHIZOBACTERIAL TREATED EGGPLANT UNDER ORGANIC CONDITIONS

pumila are flavonoids (kaempferol, myricetin, naringin, and rutin) and phenolics compound (gallic acid and pyrogallol).

Safety and efficacy of Labisia pumila containing products

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.

Synthesis and characterization of bio-based phenol-formaldehyde resol resins from bark autoclave extractives

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).

Resistance/susceptibility of Faba Bean to Botrytis fabae: The Causal Agent of Chocolate Spot with Respect to Leaf Position