Keywords: Hydantoin.PNG Chemical Structure of Imidazolidine-2 4-dione commonly called Hydantoin H Padleckas created this image file on September 11-12 2005 especially for use in the article Hydantoin in Wikimedia H Padleckas 19 16 12 September 2005 UTC 2005-09-12 own assumed H Padleckas Hydantoin |