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5,5-Dimethylhydantoin

5,5-Dimethylhydantoin Basic information
Product Name:5,5-Dimethylhydantoin
Synonyms:dantoindmh;DM Hydantoin;dmh[qr];dmhydantoin;Hydantoin, 5,5-dimethyl-;nsc8652;T10;t10[qr]
CAS:77-71-4
MF:C5H8N2O2
MW:128.13
EINECS:201-051-3
Product Categories:Resin additives;Building Blocks;Miscellaneous Natural Products;Water treatment chemicals;Heterocyclic Building Blocks;Imidazolines/Imidazolidines
Mol File:77-71-4.mol
5,5-Dimethylhydantoin Structure
5,5-Dimethylhydantoin Chemical Properties
Melting point 174-177 °C (lit.)
Boiling point 237.54°C (rough estimate)
density 1.2864 (rough estimate)
refractive index 1.4730 (estimate)
Fp 193°C
storage temp. Sealed in dry,Room Temperature
solubility H2O: 0.1 g/mL hot, clear
pkapKa 8.1 (Uncertain)
form Crystalline Powder or Crystals
color White to off-white
Water Solubility soluble
BRN 2827
LogP-0.480
CAS DataBase Reference77-71-4(CAS DataBase Reference)
NIST Chemistry Reference2,4-Imidazolidinedione, 5,5-dimethyl-(77-71-4)
EPA Substance Registry System5,5-Dimethylhydantoin (77-71-4)
Safety Information
Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 22-24/25-36/37-26
WGK Germany 2
RTECS MU0977000
TSCA Yes
HS Code 29332100
Hazardous Substances Data77-71-4(Hazardous Substances Data)
ToxicityLD50 oral in rabbit: 12660mg/kg
MSDS Information
ProviderLanguage
5,5-Dimethylhydantoin English
ACROS English
SigmaAldrich English
ALFA English
5,5-Dimethylhydantoin Usage And Synthesis
Chemical Propertieswhite to off-white crystals or crystalline powder
Uses5,5-Dimethylhydantoin is part of a group of hydantoin compounds that are being evaluated for their anticonvulsant and central nervous system antitumour properties.
DefinitionChEBI: 5,5-Dimethylhydantoin is an imidazolidine-2,4-dione.
Purification MethodsCrystallise the hydantoin from EtOH and sublime it in vacuo. [Beilstein 24 III/IV 1097.]
(S)-MEPHENYTOIN 2,4-Imidazolidinedione, 5-ethyl-5-phenyl-, (+-)- 5-Ethyl-5-methylhydantoin Bromo-1-chloro-5,5-dimethylhydantoin, 3-: (Bromo-1-chloro-5.5-dimethyl-2,4-imidazokidinedione),3-BROMO-1-CHLORO-5,5-DIMETHYLHYDANTOIN 1,3-DIAZASPIRO[4.5]DECANE-2,4-DIONE 5-METHYL-5-PHENYLHYDANTOIN 1,3-DICHLORO-5,5-DIMETHYLHYDANTOIN 1,3-DIAZA-SPIRO[4.4]NONANE-2,4-DIONE 1-BROMO-3-CHLORO-5,5-DIMETHYLHYDANTOIN 96+%,1-Bromo-3-chloro-5,5-dimethylhydantoin 5-(4-METHYLPHENYL)-5-PHENYLHYDANTOIN 5-METHYL-5-(3,4,5-TRIMETHOXYPHENYL)IMIDAZOLIDINE-2,4-DIONE 5-isopropyl-5-methylimidazolidine-2,4-dione 5-CYCLOBUTYL-5-PHENYLHYDANTOIN 1,3-DIBROMO-5-ETHYL-5-METHYLHYDANTOIN NSC22850 Iprodione Dimethyl sulfoxide Dimethyl carbonate
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