methyl


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methyl

(mĕth`əl), CH3, organic free radicalfree radical,
in chemistry, a molecule or atom that contains an unpaired electron but is neither positively nor negatively charged. Free radicals are usually highly reactive and unstable. They are produced by homolytic cleavage of a covalent bond (see chemical bond); i.e.
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 or alkyl groupalkyl group
, in chemistry, group of carbon and hydrogen atoms derived from an alkane molecule by removing one hydrogen atom (see radical). The name of the alkyl group is derived from the name of its alkane by replacing the -ane suffix with -yl, e.g.
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 derived from methanemethane
, CH4, colorless, odorless, gaseous saturated hydrocarbon; the simplest alkane. It is less dense than air, melts at −184°C;, and boils at −161.4°C;. It is combustible and can form explosive mixtures with air.
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 by the removal of one hydrogen atom.

methyl

[′meth·əl]
(organic chemistry)
The alkyl group derived from methane and usually written CH3‒. Also known as carbinyl.

methyl

1. of, consisting of, or containing the monovalent group of atoms CH3
2. an organometallic compound in which methyl groups are bound directly to a metal atom
References in periodicals archive ?
Apart from contributing to the depletion of the ozone layer, NAFDAC further revealed, methyl bromide is an extremely toxic vapour which is readily absorbed through the lungs in humans by inhalation.
Keywords: Bentonite; CTAB-BT; Deltamethrin; Methyl orange, Adsorption.
The vehicle overturned in the morning on the National Highway near a filling station, resulting in leakage of methyl spirit.
Chemist Aijun Zhang, with the Agricultural Research Service Invasive Insect Biocontrol and Behavior Laboratory in Beltsville, Maryland, has found a new use for methyl benzoate, namely as an environmentally friendly control for agricultural pests like the spotted wing drosophila fly (SWD), an invasive species from Asia.
Key Words: Rice Husk Ash Polymer Modified Concrete, Methyl Cellulose, Re-dispersible Polymer Powder, Tensile Strength, Compressive Strength, Mechanical Properties.
Survey results showed that public opposition to methyl iodide, along with the continued availability of methyl bromide, were factors in strawberry growers' decision not to use the preplant fumigant in their fields.
Study design: The effect of the methyl syringate on suppression of hypoxia-induced COX-2 in A549 cells were determined by Western blot and/or quantitative real-time polymerase chain reaction.
The company said Amooranin is its lead pharmaceutical product and now plans to seek approval for the use of methyl amooranin in the prevention of breast cancer.
A preliminary investigation revealed that an unoccupied housing unit below the one in which the family had been staying, but in the same building, had been fumigated with the pesticide methyl bromide on March 18, 2 days before the family sought medical care.
The investigators used carvacrol, the main volatile compound of oregano, and methyl cinnamate, the methyl ester of cinnamic acid, formulated in film-forming solutions at 0.75% concentrations, because of their antibacterial and antifungal properties.
The male-specific pheromone of Euschistus spp., i.e., methyl (E,Z)-2,4-decadienoate, attracts males, females, and nymphs of E.
Animal studies of methyl bromide exposure suggest the potential for developmental toxicity (National Research Council 2000).