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 ?
78 (3H each) were attributable to the methyl group protons at C-4 (H3-23 H3-24) C-10 (H3-25) C-8 (H3-26) C-14 (H3-27) C-17 (H3-28) and C-20 respectively.
Without a mutation to the DNA code directly, these attached methyl groups cause generational changes in the gene function.
For example, the curcumin in turmeric, the EGCG in green tea, the genistein in soybeans, the resveratrol in grapes, and the sulforaphane in cruciferous vegetables like broccoli can hinder the enzymes that help attach methyl groups or remove acetyl groups from genes.
Choline is preferentially used for biosynthesis of acetylcholine and can only supply methyl groups after it has been oxidized to betaine to convert homocysteine to methionine (Garrow et al.
12] or other compounds that move methyl groups to inadvertently methylate mercury?
The mode of action of betaine as 'carcass modifier' may be related to its methyl group donor properties (Eklund et al.
When the methyl group of polyisoprene is replaced with a chlorine atom, the polymer is known as polychloropene.
The presentation will focus on technology by which the methyl group of 3- and 4-methylcatechol is transformed to either an aldehyde, or subsequently a phenol group, thus providing access to fine chemicals currently traded in U.
And choline--as well as folate--contains what's known as a methyl group, which the body uses to form genetic material, or DNA.
The polymeric additive includes a polymeric backbone having substituents attached thereto, wherein the substituents include at least one urethane linked nitrogen bonded side chain having about 5 carbon atoms or more and a terminal methyl group and at least one oxygen linked water solubilizing group.
One of the last steps in the synthesis of JH is catalyzed by farnesoic acid O-methyltransferase (MeT), which transfers a methyl group from S-adenosylmethionine to either farnesoic acid (FA) or JH acid (2).
The structural activity relationship studies showed that the substitution of methyl group responsible for desired activity, furthermore it was also observed that the presence of bromine at the phenyl ring of the compound and quartenization with bromine both was found to enhance the activity.