Ethyl is a two-carbon substituent in organic chemistry. -CH2CH3 (very often abbreviated: -Et). It is an alkyl.
"Ethyl" was also the common designation in North America for high-performance commercial gasoline containing Lead in the mid 20th century. The term comes from the antiknock organometallic agent tetraethyl lead added to the gasoline.
Last updated: 10-29-2005 02:13:46