These glycols can also dissociate in an entirely different manner than that represented above. They can undergo what Biltz calls a “Caf? olid-Abban.” He contributes the interesting observation that the pyrimidine ring is also easily ruptured, under certain conditions, with formation of Characteristic hydantoin derivatives. For example, the glycol from tetramethyluric acid, VII, when allowed to stand in aqueous or acetic acid solutions, in ...
![Carbamic acid,[2-amino-1-(aminocarbonyl)-2-oxoethyl]-, ethyl ester (9CI) Structure](https://image.chemsrc.com/caspic/313/58178-23-7.png)
