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W506206

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J Liira et al.
Xenobiotica; the fate of foreign compounds in biological systems, 21(1), 53-63 (1991-01-01)
1. Rats were exposed to m-xylene (300 ppm) and methyl ethyl ketone (MEK, 600 ppm) vapour, separately and in combination. 2. Repeated exposures to m-xylene enhanced liver drug-metabolizing capacity, whereas MEK showed no effects. After mixed exposure the cytochrome P-450-dependent...
Diversity-oriented synthesis of polycyclic scaffolds by modification of an anodic product derived from 2,4-dimethylphenol.
Joaquin Barjau et al.
Angewandte Chemie (International ed. in English), 50(6), 1415-1419 (2011-02-04)
S M Chernykh et al.
Prikladnaia biokhimiia i mikrobiologiia, 41(5), 578-581 (2005-10-26)
We optimized the conditions for production of laccase by lignolytic fungi Panus tigrinus 8/18. 2,4-Dimethylphenol was used as an aromatic inductor. The addition of 2,4-dimethylphenol and 2 mM CuSO4 to a rich medium was followed by a tenfold increase in...
Arturo Romero et al.
Journal of hazardous materials, 162(2-3), 785-790 (2008-07-08)
Hydrogen peroxide has been used to oxidize a sorbed aromatic contaminant in a loamy sand with 195.9 g kg(-1) of organic carbon by using iron as catalyst at 20 degrees C. The 2,4-dimethylphenol (2,4-DMP) was chosen as pollutant. Because of...
T Faludi et al.
Environmental science and pollution research international, 22(15), 11966-11974 (2015-05-27)
As a novel approach to characterize the phenolic pollutants of Lake Balaton (Central Europe, western Hungary), 26 endocrine disrupting phenols (chlorophenols, nitrophenols, alkylphenols, triclosan, bisphenol-A) were quantified in dissolved and suspended particulate matter (SPM) phases, alike. Sample collection was performed...
J P Ghosh et al.
Chemosphere, 71(9), 1709-1717 (2008-02-13)
The potential use of laccase (SP-504) in an advanced oxidation-based treatment technology to remove 2,4-dimethylphenol (DMP) from water was investigated with and without the additive, polyethylene glycol (PEG). The DMP concentration was varied between 1.0 and 5.0 mM. The optimization...
Dockyu Kim et al.
Applied microbiology and biotechnology, 86(6), 1841-1847 (2010-01-19)
Escherichia coli cells expressing Rhodococcus DK17 o-xylene dioxygenase genes were used for bioconversion of m-xylene. Gas chromatography-mass spectrometry analysis of the oxidation products detected 3-methylbenzylalcohol and 2,4-dimethylphenol in the ratio 9:1. Molecular modeling suggests that o-xylene dioxygenase can hold xylene...
Giulia Caron et al.
Journal of medicinal chemistry, 48(9), 3269-3279 (2005-04-29)
Growing interest in the use of both the logarithm of the partition coefficient of the neutral species in the alkane/water system (log P(N)(alk)) and the difference between log P(N)(oct) (the logarithm of the partition coefficient of the neutral species in...
Masaaki Fujikawa et al.
Bioorganic & medicinal chemistry, 15(11), 3756-3767 (2007-04-10)
We previously reported a classical quantitative structure-activity relationship (QSAR) equation for permeability coefficients (P(app-pampa)) by parallel artificial membrane permeation assay (PAMPA) of structurally diverse compounds with simple physicochemical parameters, hydrophobicity at a particular pH (logP(oct) and |pK(a)-pH|), hydrogen-accepting ability (SA(HA))...
F L Arenghi et al.
Applied and environmental microbiology, 67(7), 3304-3308 (2001-06-27)
Pseudomonas stutzeri OX1 meta pathway genes for toluene and o-xylene catabolism were analyzed, and loci encoding phenol hydroxylase, catechol 2,3-dioxygenase, 2-hydroxymuconate semialdehyde dehydrogenase, and 2-hydroxymuconate semialdehyde hydrolase were mapped. Phenol hydroxylase converted a broad range of substrates, as it was...
Hiroko Tsukatani et al.
Analytica chimica acta, 682(1-2), 72-76 (2010-11-09)
Gas chromatography/supersonic jet/resonance-enhanced multiphoton ionization/time-of-flight mass spectrometry (GC/SSJ/REMPI/TOF-MS) was employed for isomer-selective determination of 2,4-xylenol in river and seawater samples. The sample containing 2,4-xylenol was measured using argon, rather than helium, as the GC carrier gas to cool the analyte...
B Bukowska et al.
Cell biology international, 24(10), 705-711 (2000-10-12)
The effects of exposure to different concentrations of phenoxyherbicides and their metabolites were studied in human erythrocytes, with particular attention to catalase (CAT-EC. 1.11.1. 6- hydrogen peroxide: hydrogen peroxide oxidoreductase). 4-chloro-2-methylphenoxyacetic acid (MCPA), 2,4-dimethylphenol (2, 4-DMP) and 2,4-dichlorophenoxyacetic acid (2,4-D)...
G W Holcombe et al.
Archives of environmental contamination and toxicology, 11(1), 73-78 (1982-01-01)
Embryos of fathead minnows were more resistant to phenol, 2,4-dimethylphenol (2,4-DMP), 2,4-dichlorophenol (2,4-DCP), and pentachlorophenol (PCP) than were larval or juvenile life stages. Growth of 28-day-old fish was the most sensitive indicator of stress during exposures to phenol, 2,4-DMP, and...
B Bukowska et al.
Blood cells, molecules & diseases, 39(3), 238-244 (2007-07-27)
The effect of phenolic compounds: phenol, 2,4-dichlorophenol (2,4-DCP), 2,4-dimethylphenol (2,4-DMP) and catechol on human erythrocytes was studied. The level of fluorescent label - 6-carboxy-2',7'-dichlorodihydrofluorescein diacetate (H(2)DCFDA) oxidation by phenolic compounds in erythrocytes as well as the carbonyl group content and...
Peipei Qi et al.
Talanta, 81(4-5), 1630-1635 (2010-05-06)
A molecularly imprinted polymer (MIP) was prepared using 2,4-dimethylphenol (2,4-DMP) as template. The synthesis is optimized by using three different porogens, chloroform, acetonitrile and toluene. The MIP was used as a class-selective sorbent in molecularly imprinted solid-phase extraction (MIP-SPE) for...
Christopher J Keturakis et al.
ChemSusChem, 11(23), 4044-4059 (2018-10-20)
Biomass pyrolysis by solid acid catalysts is one of many promising technologies for sustainable production of hydrocarbon liquid fuels and value-added chemicals, but these complex chemical transformations are still poorly understood. A series of well-defined model SiO2 -supported alumina catalysts...
K M Engström
Scandinavian journal of work, environment & health, 10(2), 75-81 (1984-04-01)
Gas chromatographic methods have been developed for the urinalysis of metabolic products of ethylbenzene. "Minor" metabolites were emphasized in this process. The methods were worked out so that simultaneous determination of several compounds could be achieved with one method. On...
Cynthia D Selassie et al.
Journal of medicinal chemistry, 48(23), 7234-7242 (2005-11-11)
In this comprehensive study on the caspase-mediated apoptosis-inducing effect of 51 substituted phenols in a murine leukemia cell line (L1210), we determined the concentrations needed to induce caspase activity by 50% (I50) and utilized these data to develop the following...
María J Trujillo-Rodríguez et al.
Analytical and bioanalytical chemistry, 407(29), 8753-8764 (2015-09-26)
The use of mixed hemimicelles of ionic liquid (IL)-based surfactants in a magnetic-based micro-dispersive solid-phase extraction (m-μdSPE) approach is described. Not only is the symmetric monocationic IL-based surfactant 1,3-didodecylimidazolium bromide (C12C12Im-Br) studied for first time in m-μdSPE, but double-salt (DS)...
Metabolism and distribution of 2,4-dimethylphenol in rat.
J S Kaka et al.
Ecotoxicology and environmental safety, 6(1), 35-40 (1982-02-01)
C C Agee et al.
Antimicrobial agents and chemotherapy, 18(2), 243-248 (1980-08-01)
Mycoplasma pneumoniae induces pneumonia-like symptoms in hamsters and causes ciliostasis and cytonecrosis in hamster tracheal explants. 2,4-Dimethylphenol and, to a lesser extent, its 2,3-, 2,5-, and 2,6-dimethylphenol isomers protected tracheal explants from these changes after exposure to virulent M. pneumoniae...
B Bukowska et al.
Biochemistry and molecular biology international, 45(1), 47-59 (1998-06-23)
The effect of phenoxyherbicides and their metabolites on the structure of oxy- and deoxyhemoglobin was studied by using different doses and times of incubation of hemoglobin with the herbicide. It was ascertained that among the investigated hemoglobins the most sensitive...
F B Daniel et al.
Drug and chemical toxicology, 16(4), 351-368 (1993-01-01)
Male and female Sprague-Dawley rats received 2,4-dimethylphenol daily by gavage for 10 or 90 consecutive days. The 10-day acute study doses were 0, 60, 120, 600 and 1200 mg/kg; the 90-day subchronic study doses were 0, 60, 180 and 540...
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