Various aromatic compounds. Medical search. Frequent questions

Examples of non-benzene compounds with aromatic properties are furan, a heterocyclic compound with a five-membered ring that includes a single oxygen atom, and pyridine, a heterocyclic compound with a six-membered ring containing one nitrogen atom. (wikipedia.org)
Key aromatic hydrocarbons of commercial interest are benzene, toluene, ortho-xylene and para-xylene. (wikipedia.org)
Benzene, C 6 H 6 {\displaystyle {\ce {C6H6}}} , is the least complex aromatic hydrocarbon, and it was the first one named as such. (wikipedia.org)
The most famous such compound is benzene . (kids.net.au)
Deep eutectic solvents (DESs) are developing as an alternate medium for aromatic extraction, especially benzene and thiophene from aliphatic hydrocarbon mixtures. (aiche.org)
Aromatic Compounds Aromatic compounds contain one or more isolated or fused benzene rings. (org.in)
An aromatic compound consist of two parts : (1) Nucleus: The most ideal aromatic compound is benzene. (org.in)
Phenol is an aromatic compound derived from benzene. (cdc.gov)
NIOSH's response focused primarily on industrial hygiene assessment of potential occupational exposures [benzene and other volatile organic compounds, oil mist, polynuclear aromatic hydrocarbons (PNA's), diesel fumes, and noise] during typical tasks performed by the majority of the 11,000 workers involved in the 1989 cleanup activities. (cdc.gov)

EI-Sheekh MM, Ghareib MM, EL-Souod GW A (2011) IBiodegradation of Phenolic and Polycyclic Aromatic Compounds by Some Algae and Cyanobacteria. (omicsonline.org)

Hydrocarbons without an aromatic ring are called aliphatic. (wikipedia.org)
They Undergo Electrophilic substitution reactions unlike Aliphatic Compounds which undergo Nucleophilic substitution reactions . (kids.net.au)
The intermolecular forces between aromatic, aliphatic, and DESs components are analysed in van der Waals and hydrogen bond interactions. (aiche.org)
Some cyclic compounds are named alicyclic because they are both aliphatic and cyclic at the same time. (pediaa.com)
An alicyclic compound in organic chemistry is a compound that is both aliphatic and cyclic. (pediaa.com)
The term 'aliphatic' refers to non-aromatic hydrocarbons. (wikipedia.org)
Diisocyanates are a group of low-molecular-weight aromatic and aliphatic compounds. (cdc.gov)

2011. Determination of polycyclic aromatic hydrocarbons (PAHs) in water and sediments of the Kor river, Iran. (e-ijep.co.in)
2011. Proximal input of polynuclear aromatic hydrocarbons (PAHs) in groundwater sources of Okrika mainland, Nigeria. (e-ijep.co.in)
Food can be contaminated by PAHs because of the contamination of air, water or soil, and during industrial process, as heating, drying and Polycyclic aromatic hydrocarbons (PAHs) are a group of over 200 smoking process. (bvsalud.org)
PAHs were found in different foodstuffs, including different organic compounds with two or more fused aromatic rings vegetables, fruit, cereals, oils and fats, smoked fish and meat, coffee and ( Domingo & Nadal, 2015 ). (bvsalud.org)
Polycyclic aromatic hydrocarbons (PAHs) are lipophilic compounds formed during the incomplete burning of coal, tobacco or other organic substances. (cdc.gov)

Aromatic compounds, also known as "mono- and polycyclic aromatic hydrocarbons", are organic compounds containing one or more aromatic rings. (wikipedia.org)
General properties of aromatic hydrocarbons: They display aromaticity The carbon-hydrogen ratio is high They burn with a strong sooty yellow flame because of the high carbon-hydrogen ratio They undergo electrophilic substitution reactions and nucleophilic aromatic substitutions The circle symbol for aromaticity was introduced by Sir Robert Robinson and his student James Armit in 1925 and popularized starting in 1959 by the Morrison & Boyd textbook on organic chemistry. (wikipedia.org)
Although extensive information has been published on the effect and metabolism of nitro- polycyclic aromatic hydrocarbons (nitro-PAH) by animals, few studies on the metabolism of these xenobiotics by plants has been reported. (astm.org)
The degradation of polycyclic aromatic hydrocarbons by different algae seems to be related to the molecular structures of the compound and physiological metabolism of the algae. (omicsonline.org)
The simplest organic compound containing only carbon and hydrogen are called hydrocarbons. (org.in)
Accumulation of aromatic hydrocarbons and their derivatives in large water bodies generally occurs through processes, such as atmospheric deposition, surface runoff, etc. (e-ijep.co.in)
2015. Contamination of environment with polycyclic aromatic hydrocarbons in India. (e-ijep.co.in)
2016. Environmental carcinogenic polycyclic aromatic hydrocarbons in soil from Himalayas, India: Implications for spatial distribution, sources apportionment and risk assessment. (e-ijep.co.in)
2016. Atmospheric concentrations of polycyclic aromatic hydrocarbons in India and South Korea: A review. (e-ijep.co.in)
Analysis of polycyclic aromatic hydrocarbons in road runoff water from high traffic area of Guwahati city, Assam, India. (e-ijep.co.in)
2013. Determination of polycyclic aromatic hydrocarbons in Gomti river, Lucknow, India. (e-ijep.co.in)
Extraction techniques for determination of polycyclic aromatic hydrocarbons in water samples. (e-ijep.co.in)
Aromatic hydrocarbons , also known as arenes , which are hydrocarbons that have at least one aromatic ring . (wikipedia.org)
10% of total nonmethane organic carbon emission are aromatic hydrocarbons from the exhaust of gasoline-powered vehicles. (wikipedia.org)
Metalworking fluids are oil-water emulsions that contain paraffins, pine oils, polycyclic aromatic hydrocarbons, and heavy metals ( 10 , 11 ). (cdc.gov)

An example of electrophilic aromatic substitution is the nitration of salicylic acid: In coupling reactions a metal catalyzes a coupling between two formal radical fragments. (wikipedia.org)
Common coupling reactions with arenes result in the formation of new carbon-carbon bonds e.g., alkylarenes, vinyl arenes, biraryls, new carbon-nitrogen bonds (anilines) or new carbon-oxygen bonds (aryloxy compounds). (wikipedia.org)

Volatile organic compounds (VOCs) are key components of tropospheric chemistry. (copernicus.org)

Most aromatic compounds undergo electrophilic substitution reactions. (pediaa.com)

The molecule heme contains an aromatic system with 22 π-electrons. (wikipedia.org)
This is a little advanced and at the top of the difficulty the DAT can throw at you, you have to consider compound 3 as one molecule, not two separate rings. (datquestionoftheday.com)
The carbon bridge actually pushes the 10 carbon ring to be planar, without it the molecule wouldn't be aromatic. (datquestionoftheday.com)
A molecule should obey Huckel's rule in order to be named as an aromatic compound. (pediaa.com)

The reason behind is that during resonance of a six membered cyclic compound charges never reaches at meta position that why it is so try to proof it by drawing resonance structure and if you didn't get us then tell me in the comments below. (stackexchange.com)
A cyclic compound is any compound that has at least three atoms bonded to each other, forming an enclosed ring structure. (pediaa.com)
In order to form a cyclic compound, there should be at least three atoms bonded to each other via single bonds , forming a cyclic structure. (pediaa.com)

The demethoxylation of lignin-derived aromatic monomers in aerobic environments releases formaldehyde, a metabolite that is a potent cellular toxin but that is also a growth substrate for methylotrophs. (figshare.com)
16S lignin-derived mixtures of aromatic molecules. (lu.se)

Aromatic compounds are compounds containing a planar set of atoms that are (in the classical sense) connected by single and double bonds alternating in a system of one or more closed rings. (kids.net.au)
There cannot be any sp3 atoms IN the aromatic ring. (datquestionoftheday.com)
Aromatic compounds are organic compounds composed of carbon and hydrogen atoms arranged in ring structures with delocalized pi electrons. (pediaa.com)
One class of organic, with a ring structure of carbon atoms, called aromatics, were discovered in the plume. (geo-leo.de)

The International Agency for Research on Cancer (IARC) is pleased to announce that the IARC Monographs volume on some aromatic amines and related compounds is now available online. (who.int)

The compound 1-naphthol is completely reduced to a mixture of decalin-ol isomers. (wikipedia.org)
The two similar compounds have the same mass and general structure, but slightly different arrangements of the additional groups, known as isomers. (geo-leo.de)
We find that it is simple to distinguish mass spectral features between benzoic acid and its related compounds, but more difficult to explain the differences between the isomers. (geo-leo.de)

In this Video, Students can Learn about Chemistry - Aromatic Antiaromatic or Nonaromatic Compounds. (brilliantqatar.com)
Karadakov, PB & Cooper, D 2017, ' Modern Valence-Bond Descriptions of Polycyclic Fused Aromatic Compounds Involving Cyclopropenyl Rings ', Computational and Theoretical Chemistry . (york.ac.uk)
The purpose of this study is to create interactive multimedia that can facilitate students in studying the material of organic chemistry course especially on the concept of aromatic compound. (matec-conferences.org)
Based on the results of the study, the manufacture of interactive multimedia on this Android system has the potential to be applied to the learning of organic chemistry especially on the aromatic compound subject. (matec-conferences.org)
It is because the existence of interactive multimedia makes it easier for the student to study organic chemistry especially on the concept of aromatic compound. (matec-conferences.org)
In organic chemistry , a hydrocarbon is an organic compound consisting entirely of hydrogen and carbon . (wikipedia.org)
As indicated by many studies, among other organic species, low‐mass aromatics likely played a role in the emergence of life on Earth and may be linked to potential prebiotic or biogenic chemistry on icy moons. (geo-leo.de)

The four aromatic amino acids histidine, phenylalanine, tryptophan, and tyrosine each serve as one of the 20 basic building-blocks of proteins. (wikipedia.org)
Anaerobic degradation of aromatic amino acids has been reviewed by Barker. (psu.edu)

While microbial degradation or alteration of aromatic compounds by aerobic microorganisms is well known and major degradative pathways have been elucidated, anoxic degradative pathways are poorly understood. (psu.edu)
An integrated anaerobic‐aerobic process for the complete mineralization of 2,4,6‐trichlorophenol (used in this work as the model toxic halogenated aromatic compound to degrade) was successfully tested and operated. (njit.edu)

Qualitative Characterization of 370 Deg to 535 Deg C Aromatic Concentrates of Crude Oils from Gpc Analyses. (cdc.gov)

In aromatic substitution one substituent on the arene ring, usually hydrogen, is replaced by another substituent. (wikipedia.org)
Ring reduction, co-metabolism of substrates, and interspecies hydrogen transfer result in the anaerobic metabolism of a wide range of substituted aromatic compounds. (psu.edu)
The carbon-to-hydrogen ratio is less in aromatic compounds. (pediaa.com)

The two main types are electrophilic aromatic substitution, when the active reagent is an electrophile, and nucleophilic aromatic substitution, when the reagent is a nucleophile. (wikipedia.org)
In radical-nucleophilic aromatic substitution, the active reagent is a radical. (wikipedia.org)

The word "aromatic" originates from the past grouping of molecules based on odor, before their general chemical properties were understood. (wikipedia.org)
The process for this invention could be used for the preparation of alkylated or acylated aromatic compounds, which are fine chemicals and/or used as intermediates in the preparation of fine chemicals or specialty chemicals in dyes and pharmaceutical industries and other chemical industries. (justia.com)
We investigate the spectral appearance of one example of aromatic compound, benzoic acid, as well as two similar compounds with additional chemical groups attached to the aromatic ring. (geo-leo.de)
Department of Chemical Engineering, Lund University, derived compounds. (lu.se)

This is partially the result of difficulties in working with anaerobic procedures, but also because the anaerobic metabolism of aromatic compounds was previously thought to be a minor degradative route in nature. (psu.edu)
Scheline reviewed anaerobic metabolism in the gastrointestinal tract from a pharmacological point of view and includes some information on reactions involving aromatic compounds. (psu.edu)
Ferry, James G. / Anaerobic metabolism of aromatic compounds . (psu.edu)

Phenolic compounds are an important class of plant secondary metabolites which play crucial physiological roles throughout the plant life cycle. (mdpi.com)

Bacterial metabolism selected lignin model compounds (vanillin, vanillate, 4- hydroxybenzoate, p-coumarate, benzoate, and ferulate) was carried out with three of the Pseudomonas isolates and in addition with the strain Pseudomonas putida KT2440 from a Introduction culture collection. (lu.se)
These results contribute to a better more biomass-derived carbohydrates are also used for produc- understanding of the aromatic metabolism of P. putida in tion of chemicals, a further valorization of lignin is an essential terms of growth and uptake rates, which will be helpful for component. (lu.se)

Apart from being petroleum and coal origin, there are lots of modern amenities used by city residents of which these aromatic substances are either constituents or derivatives. (e-ijep.co.in)
Here, we study the behavior of single‐ringed aromatic compounds-benzoic acid and two isomeric derivatives, 2,3‐dihydroxybenzoic acid and 2,5‐dihydroxybenzoic acid-using Laser‐Induced Liquid Beam Ion Desorption (LILBID), an analogue setup to simulate the impact ionization mass spectra of ice grains in space. (geo-leo.de)
Parent compounds can be distinguished easily from their derivatives due to various spectral differences, including the (de)protonated molecular ion peaks appearing at different m / z values. (geo-leo.de)
Parent aromatic compounds can be easily distinguished from their derivatives in ice grains with impact ionization mass spectrometry. (geo-leo.de)

Toxicological appraisal of halogenated aromatic compounds following groundwater pollution : report on a WHO working group. (who.int)

The activity of anaerobes is important in carbon cycling in anoxic habitats and for the removal of toxic compounds released into the environment. (psu.edu)
instead it occasionally leads to the formation of metabolic products that are more toxic or persistent than the parent compound 4 . (nature.com)

The National Standard specifies requirements for aromatic disinfectant fluids containing quaternary ammonium compounds (QACs) as their principal anti-microbial agents. (gottbs.com)

Aromatic compounds are generally nonpolar and are immiscible with water. (pediaa.com)

The Hückel "4n+2" rule can be used to predict when aromatic behavior exists. (kids.net.au)

Compounds with a six membered aromatic ring containing NITROGEN. (bvsalud.org)

This study proves the utility of liquid-liquid extraction through longtime mechanical agitation in order to extract aromatic compounds from water of a city drainage basin. (e-ijep.co.in)

However, methods to analyze accumulation of specific compounds in individual living cells from a community, followed by recovery and isolation, are still limited. (frontiersin.org)

In contrast, selectively isolating microorganisms that accumulate desirable intracellular compounds, such as high-valued organic chemicals or environmental pollutants (such as heavy metals), can be challenging, as these organisms may not grow rapidly or may not grow in a unique environment that can be utilized as a selection parameter or selective pressure. (frontiersin.org)
Smells she describes as a mixture of organic chemicals and aromatic compounds. (cdc.gov)

Aromatic compounds constitute a class of organic molecules that are of major importance in the global storage and cycling of carbon. (psu.edu)

Denaturation of plant cell enzymes by autoclaving, arrested the enzymatic activity resulting in a 10% deactivation of the compounds. (astm.org)
In the Rieske oxygenase class, work to date has been conducted on a small sample of enzymes, specifically those that perform dioxygenation of aromatic rings. (nature.com)
Some of the enzymes which generate aromatic radicals that break down most prominent bacterial strains found were isolated and tax- the complex linkages present in lignin to compounds of lower onomically identified using 16S ribosomal RNA (rRNA) se- molecular weight. (lu.se)

The types of compounds present in aromatic concentrates derived from high-boiling petroleum distillates can be estimated from a gel permeation chromatographic (gpc) analysis by the use of tables developed from extensive gpc and mass-spectral analyses on fractions from four crude oils. (cdc.gov)
The tables that show these qualitative analyses were developed through the use of pure compounds as well as the extensive analyses on Prudhoe Bay ( Alaska ), Gach Saran (Iran), Swan Hills (Canada), and Wilmington (California) crude oils. (cdc.gov)

Aromatic compounds are essentially cyclic structures. (pediaa.com)

The simplest monocyclic compounds include cycloalkanes such as cyclopropane, cyclobutane, and cyclopentane. (pediaa.com)

Aromatic compounds play key roles in the biochemistry of all living things. (wikipedia.org)

The growth curve reflected a diauxic growth other uses for it, in particular lignosulfonates originating from when mixtures of the model compounds were used as carbon the sulfite pulping process, but the predominant technical lig- source. (lu.se)

The current definition of aromatic compounds does not have any relation with their odor. (wikipedia.org)

In modern terminology, they can be described as compounds in which a continuous, closed system of rings contains separate sets of sigma and pi electrons. (kids.net.au)
The crystal structure of compounds with (N-P) n rings. (iucr.org)

In addition, we surveyed the published metagenome data to find that the most abundant group of aromatic-degrading Methylobacterium in the environment is likely the group related to Methylobacterium nodulans, and they are especially common in soil and root environments. (figshare.com)

Screening for bacteria with abilities to accumulate valuable intracellular compounds from an environmental community is difficult and requires strategic methods. (frontiersin.org)
Silver and silver compounds : environmental aspects. (who.int)

Anatomy2

Organisms32

Chemicals and Drugs144

Analytical, Diagnostic and Therapeutic Techniques and Equipment20

Phenomena and Processes49

Disciplines and Occupations5

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Polycyclic Aromatic Compounds1

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PAHs5

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Molecule4

Cyclic compound3

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Atoms4

Amines1

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