Methylene

In chemistry, methylene generally refers to a carbon atom bound to two atoms. It may mean:

• Methylene (compound) or (unsubstituted) carbene, :CH
  2
• Methylene group or methylidene, a part of a molecule with formula =CH
  2, connected to another atom by a double bond, as in "methylenecyclopropene"
• Methylene bridge or methanediyl, -CH
  2-, with the carbon connected to two distinct atoms, as in "methylene dichloride"

Methylene may also be:

• An obsolete name for methanol, CH
  3OH.
• "Bichloride of methylene" (30% methanol and 70% chloroform), a variant of the old anesthetic A.C.E. mixture.

See also

• Methyl group
• Methine
• Methylene blue