an organic compound whose acidity is due to the presence of a carboxyl gorup. Monocarboxylic acids (such as acetic acid or butyric acid) have one carboxyl group, dicarboxylic acids (such as oxalic acid or malonic acid) have two, tricarboxylic acids (such as citric acid) have three.

A species containing the group: CO2H.

A compound that contains the -CO2H functional group.

an organic acid containing a carboxyl group; the general formula is RCOOH.

an organic acid characterized by one or more carboxyl groups

one of the sticky ends on an amino acid.

A substance containing the carboxyl group. The carboxylic hydrogen can be lost as a hydrogen ion, so these substances are also acidic. An example includes acetic acid.

an organic compound containing the carboxyl group.

Simply, a compound present in living organisms or organic, non-living substances that contains one or more carboxyl groups (COOH).

carboxyl; carboxyl group. A carboxylic acid is an organic molecule with a -(C=O)-OH group. The group is also written as -COOH and is called a carboxyl group. The hydrogen on the -COOH group ionizes in water; carboxylic acids are weak acids. The simplest carboxylic acids are formic acid (H-COOH) and acetic acid (CH3-COOH).

Acids containing a carboxyl group, COOH.

Carboxylic acids are organic acids characterized by the presence of a carboxyl group, which has the formula -C(=O)OH, usually written -COOH or -CO2H. Compendium of Chemical Terminology, http://goldbook.iupac.org/C00852.html carboxylic acids, accessed 15 Jan 2007. Carboxylic acids are Bronsted acids — they are proton donors.