Allantoin is an imidazolidine-2,4-dione that is 5-aminohydantoin in which a carbamoyl group is attached to the exocyclic nitrogen.Allantoin is a major metabolic intermediate in most organisms including animals, plants and bacteria.
Allantoin is a chemical compound with formula C4H6N4O3. It is also called 5-ureidohydantoin or glyoxyldiureide.It is a diureide of glyoxylic acid.It is produced from uric acid, which itself is a degradation product of nucleic acids, by action of urate oxidase (uricase).