羧基（carboxyl），是 有机化学 中的基本 官能团 ，由一个 碳原子 、两个 氧原子 和一个 氢原子 组成，化学式为–COOH。 分子中具有羧基的化合物称为 羧酸 。

In organic chemistry, a carboxylic acid is an organic acid that contains a carboxyl group (−C(=O)−OH) [1] attached to an R-group. The general formula of a carboxylic acid is often …

As the carboxyl groups are on the same side of the double bond, it forms an internal hydrogen bond. Peptide bonds are a link that connects one amino acid's amino group with the carboxyl …

羧酸常以二聚體形式存在 (虛線為氫鍵). 因為羧基由能產生氫鍵的羥基和羰基組成，所以所有羧酸都具有極性。 存在於非極性物質中的羧酸常以二聚體的形式存在。 碳數較少的羧酸（c 1 ～c …

羧 （ suō ） 基 [1] [2] （英語： carboxyl group ），化學式–C(=O)OH [3] ，是羧酸所具有的官能团。一般而言，羧基上的氢有较大的电离倾向，从而使羧酸在水溶液中显酸性。羧酸根负离子所 …

What is a Carboxyl Group? Carboxyl groups are a combination of two functional groups attached to a single carbon atom, namely, hydroxyl (single-bonded OH) and carbonyl (double bonded …

2020年1月14日 · The carboxyl group is an organic functional group consisting of a carbon atom double bonded to an oxygen atom and single bonded to a hydroxyl group.

2025年3月12日 · The carboxyl (COOH) group is so-named because of the carbonyl group (C=O) and hydroxyl group. The chief chemical characteristic of the carboxylic acids is their acidity. …

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What is a Carboxyl Functional Group? A carboxyl is a common functional group in organic chemistry. It can be referred to as a carboxy group, a carboxyl functional group, or a carboxyl …