| 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 |
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| 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 |
| solubility | H2O: 0.1 g/mL hot, clear |
| pka | pKa 8.1 (Uncertain) |
| form | Crystalline Powder or Crystals |
| color | White to off-white |
| Water Solubility | soluble |
| BRN | 2827 |
| CAS DataBase Reference | 77-71-4(CAS DataBase Reference) |
| NIST Chemistry Reference | 2,4-Imidazolidinedione, 5,5-dimethyl-(77-71-4) |
| EPA Substance Registry System | 5,5-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 Data | 77-71-4(Hazardous Substances Data) |
| Toxicity | LD50 oral in rabbit: 12660mg/kg |
| MSDS Information |
| Provider | Language |
|---|---|
| 5,5-Dimethylhydantoin | English |
| ACROS | English |
| SigmaAldrich | English |
| ALFA | English |
| 5,5-Dimethylhydantoin Usage And Synthesis |
| Chemical Properties | white to off-white crystals or crystalline powder |
| Purification Methods | Crystallise the hydantoin from EtOH and sublime it in vacuo. [Beilstein 24 III/IV 1097.] |
| 5,5-Dimethylhydantoin Preparation Products And Raw materials |
| Raw materials | Ammonium carbonate--> cyanohydrin |
| Preparation Products | 1,3-Dibromo-5,5-dimethylhydantoin-->1,3-DIIODO-5,5-DIMETHYLHYDANTOIN |