Carboxylic acid carbonyl functionalities such as ketone as well as moderately reactive ester, olefin, nitrile, and halide moieties. Carboxylic acid A carboxylic acid is an organic compound that contains a carboxyl group (C(=O)OH). The general formula of a carboxylic acid is R–COOH, with R referring to the rest of the (possibly quite large) molecule. Carboxylic acids occur widely and include the amino acids (which make up proteins) and acetic acid (which is part of vinegar and occurs in metabolism). Salts and esters of carboxylic acids are called carboxylates. When a carboxyl group is deprotonated, its conjugate base forms a carboxylate anion. Carboxylate
Sorbic acid through a chemical reaction with nitrites at pH of 2-4.2 – the latter conditions being ones that mimic the gastric environment. In living yeast cells sorbic acid enhances oxygen free radical formation by the mitochondrial electron transport chain, leading to damage to the mitochondrial DNA. Sorbic acid Sorbic acid, or 2,4-hexadienoic acid, is a natural organic compound used as a food preservative. It has the chemical formula CH(CH)COH. It is a colourless solid that is slightly soluble in water and sublimes readily. It was first isolated from the unripe berries of the "Sorbus aucuparia" (rowan tree), hence its name. The