All articles starting with M
36,687 articles
Methyl decanoate
Methyl decanoate (methyl caprate, CAS 110-42-9), C11H22O2, the methyl ester of capric acid; a colorless liquid found in cheeses and hops, used as flavoring agent and insect attractant, EU pesticide approval expired 31 August 2024.
Methyl diethanolamine
Methyl diethanolamine, also known as N-methyldiethanolamine or MDEA, is a colorless tertiary alkanolamine used to remove hydrogen sulfide and carbon dioxide from natural gas, refinery gas, and synthesis gas.
Methyl dihydrojasmonate
Methyl dihydrojasmonate, sold under the trade name Hedione, is a synthetic fragrance molecule with a transparent jasmine-like floral odor, commercialized in 1962 and widely used in perfumery.
Methyl Ethel
Methyl Ethel is the art rock and indie pop project of Western Australian songwriter Jake Webb, founded in Perth in 2013 and known for the single 'Ubu'.
Methyl formate
Methyl formate (HCOOCH₃), also called methyl methanoate, is the simplest carboxylate ester, a clear, extremely flammable liquid produced industrially as the central intermediate in making formic acid.
Methyl group
A methyl group (Me) is the smallest alkyl group, the –CH₃ fragment formed by removing one hydrogen atom from methane, occurring as a substituent on parent molecules.
Methyl isobutyl ketone
Methyl isobutyl ketone, also called hexone or 4-methyl-2-pentanone, is a colorless, flammable liquid ketone used mainly as a solvent for paints and coatings and as a metal extractant.
Methyl isocyanate
Methyl isocyanate, also known as isocyanatomethane, is a highly toxic, flammable liquid (CH3NCO) used industrially to make carbamate pesticides, best known as the agent of the 1984 Bhopal disaster.
Methyl isothiocyanate
Methyl isothiocyanate (MITC, CAS 556-61-6), active biocide released in soil by metam sodium, metam potassium, and dazomet fumigants; broad-spectrum pre-plant soil fumigant against fungi, nematodes, insects, and weeds, and a methyl bromide alternative.
Methyl jasmonate
Methyl jasmonate (MeJA) is the methyl ester of jasmonic acid, a volatile compound that gives jasmine its scent and acts as a plant defense signal.
Methyl methacrylate
Methyl methacrylate (MMA) is a flammable, colorless liquid ester used as the monomer for PMMA acrylic sheet such as Lucite or Plexiglas, plus coatings and bone cements.
Methyl methanesulfonate
Methyl methanesulfonate (MMS) is the methyl ester of methanesulfonic acid, a direct-acting alkylating agent that methylates DNA and is classified as probably carcinogenic to humans.
Methyl nonyl ketone
Methyl nonyl ketone (2-undecanone, undecan-2-one, MNK, rue ketone) is an aliphatic ketone repellent first US-registered in 1966 for dog and cat repelling, withdrawn as an EU plant protection substance in 2017, and also used as a flavoring agent.
Methyl orange
Methyl orange is a water-soluble azo dye used chiefly as an acid-base indicator, changing from red to orange-yellow between pH 3.1 and 4.4 in titrations.
Methyl parathion
Parathion methyl (methyl parathion, CAS 298-00-0) is a Toxicity Category I organophosphate insecticide and acaricide introduced in 1949, used mainly on cotton; it inhibits acetylcholinesterase via methyl paraoxon and is restricted in the US and unapproved in the EU.
Methyl radical
The methyl radical (CH₃) is the simplest organic free radical, with one carbon atom bonded to three hydrogen atoms and an unpaired electron, making it extremely reactive toward almost any molecule.
Methyl red
Methyl red is a synthetic azo dye pH indicator, red below pH 4.4 and yellow above 6.2, used in acid-base titrations and the microbiology methyl red test.
Methyl salicylate
Methyl salicylate, also known as oil of wintergreen, is the methyl ester of salicylic acid, occurring naturally in wintergreen plants and made synthetically for flavorings, fragrances, and topical analgesics.
Methyl tert-butyl ether
Methyl tert-butyl ether (MTBE), also called tert-butyl methyl ether, is a volatile, flammable ether used as a gasoline additive, phased out in the United States after 2005.
Methyl trans 6 nonenoate
Methyl trans-6-nonenoate, EU ID 226, an unsaturated methyl ester once registered as an EU pesticide attractant (AT); non-included in Annex I by Decision 2004/129/EC, not approved, default MRL 0.01 mg/kg.
Methyl triflate
Methyl triflate (methyl trifluoromethanesulfonate) is the methyl ester of triflic acid, a highly reactive methylating agent in synthesis whose carbon-11 labeled form is a standard PET tracer reagent.
Methyl vinyl ether
Methyl vinyl ether, also called methoxyethene, is the simplest vinyl ether, an extremely flammable gas used mainly to make copolymers for pharmaceutical and personal-care products.
Methyl vinyl ketone
Methyl vinyl ketone (MVK, butenone) is a clear, colorless, highly flammable α,β-unsaturated ketone used in producing plastics, resins, vitamin A, and steroids, and formed in the atmosphere by oxidation of isoprene.
Methyl-coenzyme M reductase
Methyl-coenzyme M reductase (MCR, EC 2.8.4.1), the nickel-F430 archaeal enzyme catalyzing methane formation in methanogenesis and reverse methane oxidation in ANME; structure, mechanism, isoenzymes, and biotechnology.
Methyl-CpG binding domain sequencing
Methyl-CpG binding domain sequencing, or MBD-Seq, is an epigenomic sequencing method that captures methylated DNA fragments with MBD2 proteins to map 5-methylcytosine across the genome, favoring CpG-dense regions.
Methyl-CpG-binding domain protein 4
MBD4 (MED1, methyl-CpG-binding domain protein 4) is a human DNA glycosylase with an N-terminal methyl-CpG-binding domain and C-terminal HhH glycosylase domain that repairs G:T/G:U mismatches at CpG sites; its loss causes CpG>TpG hypermutation and a recessive tumor predisposition syndrome.
Methyl-TROSY
Methyl-TROSY is a family of NMR experiments that uses labeled methyl groups as probes, extending solution NMR to proteins and complexes up to about 1 MDa.
Methylal
Methylal, also called dimethoxymethane (DMM) or formal, is the dimethyl acetal of formaldehyde, a clear, volatile liquid with a chloroform-like odor used as a fast-evaporating solvent and diesel fuel additive.
Methylaluminoxane
Methylaluminoxane (MAO) is a mixture of oligomeric aluminoxanes made by controlled hydrolysis of trimethylaluminum, discovered around 1980 by Hans Sinn and Walter Kaminsky in Hamburg as the cocatalyst enabling industrial metallocene polymerization.
Methylamine
Methylamine, also known as methanamine or aminomethane, is the simplest primary amine, a colorless flammable gas that is an industrial intermediate for pharmaceuticals, pesticides, and solvents.