DL-Mandelic acid

It is an isomer of cresotinic acid (2-hydroxy-3-methylbenzoic acid) and oxymethylbenzoic acid (2-methoxybenzoic acid) . Derivatives of mandelic acid are formed as a result of metabolism of adrenaline and noradrenaline by monoamine oxidase and catechol-o-methyl transferase. It is also present in certain skin care products is an intermediate molecule in the production of other biochemicals may be used as an analytical reagent and is a precursor in the manufacture of dyes. Mandelic acid is found to be associated with phenylketonuria which is an inborn error of metabolism.