a substance, C 5 H 9 NO 3 S, used in solution as an inhalant to dissolve mucus in the treatment of chronic bronchitis, asthma, and emphysema and also used as an antidote in acetaminophen poisoning.


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  • Acetylene series

    . the homologous series of unsaturated, aliphatic hydrocarbons containing one triple bond and having the general formula, C n H 2n+2 , as acetylene, HC≡CH. acetylene series The alkyne series. See under alkyne.

  • Acetylene

    a colorless gas, C 2 H 2 , having an etherlike odor, produced usually by the action of water on calcium carbide or by pyrolysis of natural gas: used especially in metal cutting and welding, as an illuminant, and in organic synthesis. Historical Examples They had put a table at the back of this cave, […]

  • Acetylformic acid


  • Acetylic

    of, relating to, or characteristic of the .

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