Name | 5,5-Dimethylhydantoin |
Synonyms | T10 DMH t10[qr] dmh[qr] nsc8652 dantoindmh dmhydantoin DM Hydantoin Dimethylhydantoin 5,5-Dimethylhydantoin 5,5-Dimethylhydrantoin 5,5-Dimethyl hydantoin Hydantoin, 5,5-dimethyl- 5,5-Dimethyl-2,4-imidazolidinedione 5,5-dimethylimidazolidine-2,4-dione |
CAS | 77-71-4 |
EINECS | 201-051-3 |
InChI | InChI=1/C5H8N2O2/c1-5(2)3(8)6-4(9)7-5/h1-2H3,(H2,6,7,8,9) |
Molecular Formula | C5H8N2O2 |
Molar Mass | 128.13 |
Density | 1.2864 (rough estimate) |
Melting Point | 174-177 °C (lit.) |
Boling Point | 237.54°C (rough estimate) |
Flash Point | 193°C |
Water Solubility | soluble |
Solubility | H2O: 0.1g/mL hot, clear |
Appearance | White crystal |
Color | White to off-white |
BRN | 2827 |
pKa | pKa 8.1 (Uncertain) |
Storage Condition | Sealed in dry,Room Temperature |
Refractive Index | 1.4730 (estimate) |
MDL | MFCD00005266 |
Physical and Chemical Properties | White prismatic crystals or crystalline powders. Melting Point 175 °c. Soluble in water, hexanol, ethyl acetate, dimethyl ether, slightly soluble in isoacetone, acetone, methyl ethyl ketone, insoluble in aliphatic hydrocarbons, trichloroethylene. Odorless, sublimable, acidic. |
Use | Mainly used as disinfectant, epoxy resin and amino acid raw materials |
Hazard Symbols | Xi - Irritant |
Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. S36/37 - Wear suitable protective clothing and gloves. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
WGK Germany | 2 |
RTECS | MU0977000 |
TSCA | Yes |
HS Code | 29332100 |
Toxicity | LD50 oral in rabbit: 12660mg/kg |