Product DetailsProduct Description of DMI CAS#80-73-9
1,3-Dimethyl-2-imidazolinone, commonly referred to as dimethylethylene urea (DMI), is a high-boiling polar solvent. It boasts a high flash point, low melting point, extremely low toxicity, low environmental impact, and excellent solvency. Furthermore, the compound exhibits exceptional stability and resistance to strong acids, strong alkalis, water, light, and oxygen.

1,3-Dimethyl-2-imidazolidinone Chemical Properties
| Melting point | 8.2 °C |
| Boiling point | 224-226 °C (lit.) |
| density | 1.056 g/mL at 25 °C (lit.) |
| vapor pressure | <1 hPa (20 °C) |
| refractive index | n20/D 1.472(lit.) |
| Fp | 220 °F |
| storage temp. | Store at +5°C to +30°C. |
| solubility | toluene: soluble(lit.) |
| pka | -0.65±0.20(Predicted) |
| form | Liquid |
| color | Clear |
| explosive limit | 1.3-8.4%(V) |
| Water Solubility | freely soluble |
| Sensitive | Hygroscopic |
| Merck | 143,249 |
| BRN | 108808 |
| InChIKey | CYSGHNMQYZDMIA-UHFFFAOYSA-N |
| LogP | -0.3 at 25℃ |
| CAS DataBase Reference | 80-73-9(CAS DataBase Reference) |
| NIST Chemistry Reference | 1,3-Dimethyl-2-imidazolidinone(80-73-9) |
| EPA Substance Registry System | N,N'-Dimethylimidazolidinone (80-73-9) |
| Hazard Codes | Xn,Xi |
| Risk Statements | 21/22-38-41-36/38-62-22 |
| Safety Statements | 26-36-36/37/39-36/37 |
| RIDADR | UN 2810 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | NJ0660000 |
| F | 3 |
| Autoignition Temperature | 305 °C |
| Hazard Note | Harmful/Irritant |
| TSCA | Yes |
| HazardClass | 6.1 |
| PackingGroup | Ⅲ |
| HS Code | 29332990 |
| Toxicity | LD50 orally in Rabbit: 1261 mg/kg LD50 dermal Rabbit 986 mg/kg |
Product Application of DMI CAS#80-73-9
1,3-Dimethyl-2-imidazolinone is widely used as a solvent in various organic synthesis reactions. It is also employed in research on the photochemical formation of stable functionalized hydrogenated silane biradical transition-metal complexes from arylsilanes. As an inert dipolar solvent, it is commonly used as a safer alternative to the carcinogenic solvent HMPA.
As a ketone-based organic compound, 1,3-Dimethyl-2-imidazolinone acts as both an organic solvent and a chemical intermediate, and finds extensive applications in pharmaceuticals, pesticides, dyes, liquid crystal materials and other related fields.


