Hydantoin, or glycolylurea, is a heterocyclic organic compound with the formula CH 2 C(O)NHC(O)NH.It is a colorless solid that arises from the reaction of glycolic acid and urea. It is an oxidized derivative of imidazolidine.In a more general sense, hydantoins can refer to a groups and a class of compounds with the same ring structure as the parent. For example, phenytoin (mentioned below) has two phenyl groups substituted onto the number 5 carbon in a hydantoin molecule.t is an oxidized derivative of imidazolidine. In a more general sense, hydantoins can refer to a groups and a class of compounds with the same ring structure as the parent. For example, phenytoin (mentioned below) has two phenyl groups substituted onto the number 5 carbon in a hydantoin molecule.
The pH range of the mouth is 5.6-6.9 slightly acidic, and the average body temp is 37 deg C-this is the environment in which human amylase is most active.
Normal color of the tongue. The human tongue is a muscular organ that plays various roles in chewing, swallowing and talking. It lacks the protective skin and therefore its color is largely dependent on that tissue it is composed of in addition to the blood flowing through it.Therefore the color of the human tongue is normally a pink-red hue.right Red Tongue. The normal color of the human tongue is pink to red. In some people the tongue tends to be more red than in others but this is not necessarily a discoloration of the tongue. 1  Glossitis is inflammation of the tongue that may arise for any number of reasons.