Since this attachment has two carbons, we call it an ethyl group.
由于这个连接有两个碳， 我们称之为乙基。
Ethyl groups
原声例句
Crash Course 综合篇
Crash Course 综合篇
It has two branches, an ethyl group and a methyl group.
它有两个分支， 一个乙基和一个甲基。
Crash Course 综合篇
So, if we number the chain the right way, the ethyl group will end up at position 4.
因此，如果我们以正确的方式对链进行编号， 乙基将位于第 4 位。
Crash Course 综合篇
The structure we just used had a methyl group on it and an ethyl group on its fifth, it would be 5-ethyl-2-methyloctane.
我们刚刚使用的结构上有一个甲基， 第五个有一个乙基，它是 5-乙基-2-甲基辛烷。
英语百科
Ethyl group
In chemistry, an ethyl group is an alkyl substituent derived from ethane (C2H6). It has the formula –CH2CH3 and is very often abbreviated Et. Ethyl is used in the IUPAC nomenclature of organic chemistry for a saturated two-carbon moiety in a molecule, whilst the prefix "eth-" is used to indicate the presence of two carbon atoms in the molecule.
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