Term Name:	1-(5-hydroxy-2-oxo-2,3-dihydroimidazol-4-yl)urea
Synonyms:	1-(5-hydroxy-2-oxo-2,3-dihydro-1H-imidazol-4-yl)urea, 2-oxo-4-hydroxy-5-ureidoimidazoline, allantoin, enol-form
Definition:	An imidazolidinone that is imidazolin-2-one substituted at positions 4 and 5 by hydroxy and ureido groups respectively.
Ontology:	ChEBI [CHEBI:74345]  ( EBI )