Meaning of diazomethane in English:



mass nounChemistry
  • A poisonous, reactive yellow gas used as a methylating agent in chemical synthesis.

    Chemical formula: CH₂N₂

    ‘Samples were evaporated to dryness under vacuum, redissolved in 20 mm of methanol, then diazomethane added to methylate ABA.’
    • ‘The sap samples were thawed and an internal standard of [H 6] ABA was added before they were dried, methylated with ethereal diazomethane, dried and redissolved in methanol for analysis by gc/ms.’
    • ‘Lipids were extracted according to the method of Bligh and Dyer, followed by methylation with ethereal diazomethane.’
    • ‘Caution: the reaction sequence should be carried out behind a blast shield and in the hood because diazomethane is a vapor.’
    • ‘With diazomethane itself, you can watch its color disappear and know that something's happening.’



/dʌɪˌazəʊˈmiːθeɪn/ /dʌɪˌeɪzəʊˈmiːθeɪn/


Late 19th century from diazo-(indicating the presence of two nitrogen atoms) + methane.