from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See catechin.
- n. A biologically important organic phenol, having two hydroxyl groups attached to the benzene ring.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The biologically important diphenol ortho-dihydroxy benzene; isomeric with hydroquinone and resorcinol.
from the GNU version of the Collaborative International Dictionary of English
- n. any of a group of chemicals having a benzene ring substituted with two hydroxyl groups in ortho position, especially ortho-dihydroxybenzene itself (C6H6O2), also called pyrocatechol, used in photography and as a reagent.
from The Century Dictionary and Cyclopedia
- n. Same as pyrocatechol or *pyrocatechin.
An additional level of confidence is that a component of the reaction mixture, called catechol, actually kills the bacteria a few hours after it is added.
Zhang, F, et al. Synthesis and reactivity of the catechol metabolites from the equine estrogen, 8, 9-dehydroestrone.
In the American and Japanese species they are a mixture of catechol and pyrogallol tannins, while they appear to be pure pyrogallol tannins in the Chinese species.
Amongst polyhydric alcohols, the behaviour of the methyl ester of catechol, _guaiacol_ was investigated.
The compound, or compounds, known as "caffetannic acid" are probably the source of catechol, as the proteins are of ammonia, amins, and pyrrols.
He considers the roasting of coffee as a destructive distillation process, summarizing the results, briefly, as the production of furfuraldehyde from the carbohydrates, acrolein from the fats, catechol and pyrogallol from the tannins, and ammonia, amins, and pyrrols from the proteins.
Their study included 2,858 white and black volunteers, aged 70 to 79, whose DNA was analyzed for the Val and Met variants of the catechol-O-methyltransferase (COMT) gene, which affects thinking skills.
Participants 'DNA was analysed for the catechol-O-methyltransferase (COMT) gene, a gene shown in studies to affect thinking skills.
Participants 'DNA was analyzed for the catechol-O-methyltransferase (COMT) gene, a gene shown in studies to affect thinking skills.
The ant gene cluster (antRAcAdAbAa) which was involved in the conversion of anthranilate to catechol was also sandwiched between two IS