'''Carboxylic acid''' is an [[organic molecule]] and an [[acid]] containing a carboxyl group, formula -COOH. They are a [[functional group]] present in both [[amino acids]] and [[fatty acid]]s. | '''Carboxylic acid''' is an [[organic molecule]] and an [[acid]] containing a carboxyl group, formula -COOH. They are a [[functional group]] present in both [[amino acids]] and [[fatty acid]]s. |