Definitions

from The Century Dictionary.

  • noun In organic chemistry, a name given to compounds each molecule of which contains four methyl groups: also used as a combining form.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun organic chemistry (in combination) Four methyl groups in a molecule.

Etymologies

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Examples

  • Tetraethyl lead and tetramethyl lead were once used in the United States as gasoline additives to increase octane rating.

    Public Health Statement for Lead 2008

  • The glycoside was converted to the hexaacetyl derivative, while permethylation only gave the tetramethyl ether, due to steric hindrance of one phenolic hydroxyl group by the sugar moiety.

    Chapter 7 1991

  • A few chemicals found in fragrances known to be neurotoxic: hexachlorophene; acetyl-ethyl-tetramethyl-tetralin; zinc-pyridinethione;

    Latest Articles upi 2010

  • Tetraethyl lead and tetramethyl lead were once used in the United States as gasoline additives to increase octane rating.

    Featured Articles - Encyclopedia of Earth 2010

  • Baculovirus-expressed, nickel-nitrilotriacetic acid affinity chromatography purified 'ZP domain' of human ZP1 was employed to assess its capability to bind and subsequently induce acrosomal exocytosis in capacitated human spermatozoa using tetramethyl rhodamine isothiocyanate conjugated Pisum sativum Agglutinin in absence or presence of various pharmacological inhibitors.

    BioMed Central - Latest articles Anasua Ganguly 2010

  • Cocktail mixes of tetramethyl rhodamine (TMR) - or Cy5 - labeled probes (osk76, osk352, osk964 and osk2209) were injected at 100 ng/µl concentrations into

    PLoS ONE Alerts: New Articles Musa M. Mhlanga et al. 2009

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