Information om | Engelska ordet METHYL

Exempel på hur man kan använda METHYL i en mening

• It is a methyl ester of the aspartic acid/phenylalanine dipeptide with brand names NutraSweet, Equal, and Canderel.
• In discussing mechanisms of organic reactions, methyl lithium and related Grignard reagents are often considered to be salts of ; and though the model may be useful for description and analysis, it is only a useful fiction.
• Omega−3 fatty acids, also called omega−3 oils, ω−3 fatty acids or n−3 fatty acids, are polyunsaturated fatty acids (PUFAs) characterized by the presence of a double bond three atoms away from the terminal methyl group in their chemical structure.
• Thebaine (paramorphine), also known as codeine methyl enol ether, is an opiate alkaloid, its name coming from the Greek Θῆβαι, Thēbai (Thebes), an ancient city in Upper Egypt.
• It can be viewed as a benzyl group substituted for the methyl group of alanine, or a phenyl group in place of a terminal hydrogen of alanine.
• The molecular structure can be described as a neopentane with one hydrogen atom in each methyl group replaced by a hydroxyl (–OH) group.
• It contains an amine group and a carboxylic acid group, both attached to the central carbon atom which also carries a methyl group side chain.
• The methyl and ethyl esters, which are quite stable, are produced on a large scale industrially as precursors to dyes.
• Methylation, in the chemical sciences, is the addition of a methyl group on a substrate, or the substitution of an atom (or group) by a methyl group.
• In 5-methylcytosine, a methyl group is attached to the 5th atom in the 6-atom ring, counting counterclockwise from the NH-bonded nitrogen at the six o'clock position.
• They are derived from the substitution of two hydrogen atoms with methyl groups in a benzene ring; which hydrogens are substituted determines which of three structural isomers results.
• A test of the groundwater conducted on September 14, 2001, showed that the water contained the ether MTBE (methyl tertiary-butyl ether) at levels of over 350 ppb (parts per billion).
• 1 M hydrochloric acid solution containing methyl green indicator is added to a 5 M solution of magnesium chloride, the color of the indicator changes from green to yellow—indicating increasing acidity—when in fact the acid has been diluted.
• Most methyl bromide is used for fumigation purposes, while some is used to manufacture other products.
• It also serves as a component of universal indicator, together with methyl red, bromothymol blue, and thymol blue.
• In one approach, fats undergo transesterification to give fatty acid methyl esters (FAMEs), which are amenable to separation and quantitation using gas chromatography.
• In biochemistry, the DNA methyltransferase (DNA MTase, DNMT) family of enzymes catalyze the transfer of a methyl group to DNA.
• For example, alkyl lithium reagents have the empirical formula Li(alkyl), where alkyl = methyl, ethyl, etc.
• The following polyenes are used as antimycotics for humans: amphotericin B, nystatin, candicidin, pimaricin, methyl partricin, and trichomycin.
• Chloromethane, also called methyl chloride, Refrigerant-40, R-40 or HCC 40, is an organic compound with the chemical formula.

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