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In chemistry, methylene generally refers to an organic functional group consisting of a carbon atom bound to two hydrogen atoms. It may mean:

  • Methylene (compound) or (unsubstituted) carbene, :CH
  • Methylene group or methylidene, a part of a molecule with formula =CH
    , connected to another atom by a double bond, as in "methylenecyclopropene"
  • Methylene bridge or methanediyl, -CH
    -, with the carbon connected to two distinct atoms, as in "methylene dichloride"

Methylene may also refer to:

  • "Bichloride of methylene" (30% methanol and 70% chloroform), a variant of the old anesthetic A.C.E. mixture.

See also[edit]