A carboxylic acid is an organic acid that contains a carboxyl group (COH) attached to an R-group. The general formula of a carboxylic acid is R−COOH or R−CO 2 H, with R referring to the alkyl, alkenyl, aryl, or other group. Carboxylic acids occur widely. Important examples include the amino acids and fatty acids. Deprotonation of a carboxylic acid gives a carboxylate anion.
