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单词 guaiacol
释义

Definition of guaiacol in English:

guaiacol

noun ˈɡwʌɪəkɒlˌɡwaɪəˈkɔl
mass nounChemistry
  • An oily yellow liquid with a penetrating odour, obtained by distilling wood tar or guaiac, used as a flavouring and an expectorant.

    〔化〕愈疮木酚,愈创木酚

    Alternative name: o-methoxyphenol; chemical formula: HOC₆H₄OCH₃

    Example sentencesExamples
    • The two main synthetic sources of synthetic vanillin are from guaiacol (chemical industry) and from lignin (paper industry).
    • These changes were associated with decreased activities of superoxide dismutase and guaiacol peroxidases and contents of ascorbate and glutathione.
    • Activities of unspecific peroxidases were also measured using guaiacol as the substrate (not shown).
    • Its synthetic counterpart, made from guaiacol or eugenol, is used in artificial vanillas.
    • Glyceryl ether of guaiacol, commonly known as guaifenesin, is present in multiple cough and cold preparations.

Origin

Mid 19th century: from guaiacum + -ol.

Definition of guaiacol in US English:

guaiacol

nounˌɡwaɪəˈkɔlˌɡwīəˈkôl
Chemistry
  • An oily yellow liquid with a penetrating odor, obtained by distilling wood tar or guaiac, used as a flavoring and an expectorant.

    〔化〕愈疮木酚,愈创木酚

    Alternative name: o-methoxyphenol; chemical formula: HOC₆H₄OCH₃

    Example sentencesExamples
    • These changes were associated with decreased activities of superoxide dismutase and guaiacol peroxidases and contents of ascorbate and glutathione.
    • Glyceryl ether of guaiacol, commonly known as guaifenesin, is present in multiple cough and cold preparations.
    • Its synthetic counterpart, made from guaiacol or eugenol, is used in artificial vanillas.
    • Activities of unspecific peroxidases were also measured using guaiacol as the substrate (not shown).
    • The two main synthetic sources of synthetic vanillin are from guaiacol (chemical industry) and from lignin (paper industry).

Origin

Mid 19th century: from guaiacum + -ol.

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更新时间:2024/12/27 3:34:06