ethyl group

chemical compound

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June 26, 2026

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The term "ethyl" refers to a specific chemical group, an alkyl radical with the formula CH₃CH₂−, derived from ethane. It is a fundamental component in organic chemistry, where functional groups dictate a molecule's reactivity.123

While "ethyl" itself is a group, not a compound, it is a building block for many important organic compounds. For example, ethylene (H₂C=CH₂) is the simplest alkene and a crucial industrial chemical used to produce polyethylene and other two-carbon compounds like ethanol and ethylene oxide. Ethyl ether (C₂H₅OC₂H₅) is a well-known ether, historically used as an anesthetic and a solvent. The presence of functional groups like double bonds or heteroatoms (atoms other than carbon or hydrogen) influences a molecule's reactivity.4523

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organometallic compound
Defining characteristics
…larger homologs such as the ethyl group, C₂H₅, which attach to a metal atom through only one carbon atom. (Simple alkyl groups such as these are often abbreviated by the symbol R.) More elaborate organic groups include the cyclopentadienyl group, C₅H₅, in which all five carbon atoms can form bonds…
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…larger homologs such as the ethyl group, C₂H₅, which attach to a metal atom through only one carbon atom. (Simple alkyl groups such as these are often abbreviated by the symbol R.) More elaborate organic groups include the cyclopentadienyl group, C₅H₅, in which all five carbon atoms can form bonds…
Read More