![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Carboxylic-acid.svg/640px-Carboxylic-acid.svg.png&w=640&q=50)
Carboxylic acid
Organic compound containing a –C(=O)OH group / From Wikipedia, the free encyclopedia
"COOH" redirects here. For the Bulgarian DJ and producer Ivan Shopov, see Cooh (musician).
Not to be confused with Carbolic acid.
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 written as R−COOH or R−CO2H, sometimes as R−C(O)OH with R referring to an organyl group (e.g., alkyl, alkenyl, aryl), or hydrogen, or other groups. Carboxylic acids occur widely. Important examples include the amino acids and fatty acids. Deprotonation of a carboxylic acid gives a carboxylate anion.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Carboxylic-acid.svg/640px-Carboxylic-acid.svg.png)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Carboxylate-resonance-hybrid.png/640px-Carboxylate-resonance-hybrid.png)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/8/87/Carboxyl-3D-space-filling-labelled.png/640px-Carboxyl-3D-space-filling-labelled.png)