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Other

tosyl

Definition of tosyl

noun

[as modifier] Chemistry
  • of or denoting the toluene-4-sulphonyl radical SO2C6H4CH3, used in organic synthesis: tosyl chloride

Origin:

1930s: from German, from to(luol) and s(ulphon)yl

tosyl in other Oxford dictionaries

Definition of tosyl in the US English dictionary
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