نتایج جستجو برای: aminophenol isomers

تعداد نتایج: 10811  

2015
Snehasis Jana Mahendra Kumar Trivedi Rama Mohan Tallapragada

O-aminophenol has extensive uses as a conducting material and in electrochemical devices. The objective of this research was to investigate the influence of biofield energy treatment on the physical thermal and spectral properties of o-aminophenol. The study was performed in two groups; the control group was remained as untreated, while the treated group was subjected to Mr. Trivedi’s biofield ...

Journal: :Pracovni lekarstvi 1959
I PACSERI

In view of the fact that aniline is absorbed not only by inhalation but also through the skin, the aerial contamination alone is not an exact indication of exposure. It is necessary to find a biological test which reveals exposure and is independent of the route of absorption. It is conceivable that the p-aminophenol excretion in the urine, which is a well-known symptom of aniline intoxication,...

Journal: :The Annals of occupational hygiene 2009
Hsiao-Shu Lee Yu-Wen Lin

Skin irritation and contact allergies are skin disorders common to hairdressers. The predominant oxidative hair dye components, such as p-phenylenediamine (PPD) and aminophenol isomers, can cause contact dermatitis. Use of protective gloves can prevent dermal contact with skin irritants. This study investigates the permeation behaviors of p-aminophenol (PAP), m-aminophenol (MAP), o-aminophenol ...

Journal: :Science 2013
Yuan-Pin Chang Karol Długołęcki Jochen Küpper Daniel Rösch Dieter Wild Stefan Willitsch

Many molecules exhibit multiple rotational isomers (conformers) that interconvert thermally and are difficult to isolate. Consequently, a precise characterization of their role in chemical reactions has proven challenging. We have probed the reactivity of specific conformers by using an experimental technique based on their spatial separation in a molecular beam by electrostatic deflection. The...

Journal: :Mutagenesis 1997
R J Brennan R H Schiestl

The carcinogen aniline is negative in the Ames Salmonella mutagenicity assay. Aniline does, however, induce intrachromosomal recombination between repeated sequences in Saccharomyces cerevisiae, resulting in deletion (DEL) of intervening sequences. We have investigated whether the generation of oxidative free radical species by aniline and/ or its metabolites may be responsible for its recombin...

2013
David A. Barrière Christophe Mallet Anders Blomgren Charlotte Simonsen Laurence Daulhac Frédéric Libert Eric Chapuy Monique Etienne Edward D. Högestätt Peter M. Zygmunt Alain Eschalier

The discovery that paracetamol is metabolized to the potent TRPV1 activator N-(4-hydroxyphenyl)-5Z,8Z,11Z,14Z-eicosatetraenamide (AM404) and that this metabolite contributes to paracetamol's antinociceptive effect in rodents via activation of TRPV1 in the central nervous system (CNS) has provided a potential strategy for developing novel analgesics. Here we validated this strategy by examining ...

Journal: :Physical chemistry chemical physics : PCCP 2008
Frank Filsinger Kirstin Wohlfart Melanie Schnell Jens-Uwe Grabow Jochen Küpper

The rotational constants and the nitrogen nuclear quadrupole coupling constants of cis-3-aminophenol and trans-3-aminophenol are determined using Fourier-transform microwave spectroscopy. We examine several J = 2 <-- 1 and 1 <-- 0 hyperfine-resolved rotational transitions for both conformers. The transitions are fit to a rigid rotor Hamiltonian including nuclear quadrupole coupling to account f...

2011
MEHDI VADI

Present research paper deals with the adsorption isotherms rate 2-amino phenol and 4-amino phenol on multi-wall carbon nanotube which performed by changing the amount of solution concentration in ppm unit. According to difference between two under studied substances are in substitution of NH2 in ortho and para position , more adsorption of 4-aminophenol on carbon nanotube demonstrate that para ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 1988
gholam hossein heravi mansour abedini

the nitrite ® nitro isomerization in nitritopentaamine cobalt (iii) halides has been known. in this paper, the effect of the size of the counter ions (noncoordinated groups) on the rate of isomerization in nitritopentaamine cobalt (iii) halides, is reported. the rate of isomerization is decreased by increasing the size of the counter ions. this decrease is explained on the basis of steric inter...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید