Introduction of 1-ETHYL-1-METHYLPYRROLIDINIUM BROMIDE 69227-51-6 powder

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5,5-Dimethylhydantoin CAS 77-71-4

CAS:77-71-4
Molecular Formula:C5H8N2O2
Molecular Weight:128.13
EINECS:201-051-3

Synonyms:A-UREIDOISOBUTYRIC ACID LACTAM; DMH; DIMETHYLHYDANTOIN; 5,5-DIMETHYL-2,4-DIOXOTETRAHYDROIMIDAZOLE; 5,5-DIMETHYL-2,4-IMIDAZOLIDINEDIONE; 5,5′-DIMETHYLHYDANTOIN; 5,5-DIMETHYLHYDANTOIN; 5,5-Dimethylimidazolidine-2,4-dione; 5,5-Dimethylhydrantoin

What is 5,5-Dimethylhydantoin CAS 77-71-4？

5,5-Dimethylhydantoin is a white prismatic crystal or crystalline powder. Melting point 175 ℃. Soluble in water, hexanol, ethyl acetate, and dimethyl ether, slightly soluble in isopropanol, acetone, and methyl ethyl ketone, insoluble in fatty hydrocarbons and trichloroethylene. Odorless, capable of sublimation, and acidic.

Specification

Item	Specification
Boiling point	237.54°C (rough estimate)
Density	1.2864 (rough estimate)
Melting point	174-177 °C (lit.)
flash point	193°C
resistivity	1.4730 (estimate)
pKa	pKa 8.1 (Uncertain)

Application

5,5-Dimethylhydantoin is a widely used organic synthesis intermediate, which is a heterocyclic compound with certain rigidity. It can be used to prepare a series of valuable derivatives through substitution reactions, such as dibromohydantoin, dichlorohydantoin, and other fine chemicals widely used in the production fields of pharmaceuticals, pesticides, plastics, and cosmetics.