Dimethyl
Dimethyl
Dimethyl (pronunciation: /daɪˈmiːθaɪl/) is a term used in organic chemistry to denote the presence of two methyl groups in a molecule.
Etymology
The term "dimethyl" is derived from the Greek words "di," meaning "two," and "methyl," which is a type of alkyl group consisting of a carbon atom bonded to three hydrogen atoms (CH3).
Definition
Dimethyl is a functional group or molecular fragment consisting of two methyl groups attached to the same atom. This atom is usually carbon, but it can also be a different element such as silicon or phosphorus.
Related Terms
- Methyl group: A functional group derived from methane, containing one carbon atom bonded to three hydrogen atoms (CH3).
- Ethyl group: A functional group derived from ethane, containing two carbon atoms and five hydrogen atoms (C2H5).
- Propyl group: A functional group derived from propane, containing three carbon atoms and seven hydrogen atoms (C3H7).
- Butyl group: A functional group derived from butane, containing four carbon atoms and nine hydrogen atoms (C4H9).
Usage
Dimethyl compounds are commonly used in organic chemistry. For example, dimethyl ether (CH3OCH3) is a colorless gas used as a propellant and a refrigerant. Dimethyl sulfoxide (C2H6OS) is a polar aprotic solvent used in organic synthesis and as an industrial solvent.
See Also
External links
- Medical encyclopedia article on Dimethyl
- Wikipedia's article - Dimethyl
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