Basic information
- Name:
1,3-Dimethyl-2-imidazolidinone
- CAS No.:
80-73-9
- Molecular Structure:
- Formula:
- C5H10N2O
- Molecular Weight:
- 114.15
- Synonyms:
- DMEU (solvent);1,3-Dimethylethyleneurea;Dimethyl imidazolidinone;2-Imidazolidinone,1,3-dimethyl-;N,N-Dimethylimidazolidone;Karbomos TsEM;1,3-dimethylimidazol-2-one;N,N-Dimethylimidazolidinone;1,3-dimethyl-2-imidazolinone;Rhonite 1;1,3-dimethyl-2-imidazolidinone (DMI);1, 3-Dimethyl-2-imidazolidinone;1,3-Dimethylimidazolidinone DMI;1,3-Dimethylimidazolidone;1,3-Domethyl-2-imidazolidinone;
- EINECS:
- 201-304-8
- Density:
- 1.064 g/cm3
- Melting Point:
- 8.2 °C
- Boiling Point:
- 220.31 °C at 760 mmHg
- Flash Point:
- 76.519 °C
- Solubility:
- Freely soluble in water
- Appearance:
- Almost colorless, clear liquid
- Hazard Symbols:
Xn, 
Xi- Risk Codes:
- 21/22-38-41-36/38
- Safety Description:
- 26-36-36/37/39 Details
- Transport Information:
- UN 2810 6.1/PG 3
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Chemistry
IUPAC Name: 1,3-dimethylimidazolidin-2-one
Empirical Formula: C5H10N2O
Molecular Weight: 114.1457g/mol
EINECS: 201-304-8
Structure of 1,3-Dimethyl-2-imidazolidinone (CAS NO.80-73-9):
Index of Refraction: 1.48
Molar Refractivity: 30.51 cm3
Molar Volume: 107.3 cm3
Polarizability: 12.09×10-24cm3
Surface Tension: 33.6 dyne/cm
Density: 1.063 g/cm3
Flash Point: 76.5 °C
Enthalpy of Vaporization: 45.67 kJ/mol
Melting Point: 8.2 °C
Boiling Point: 220.3 °C at 760 mmHg
Vapour Pressure: 0.114 mmHg at 25°C
Water Solubility: freely soluble
Sensitive: Hygroscopic
Product Categories: Imidazol&Benzimidazole;Heterocyclic Compounds
Canonical SMILES: CN1CCN(C1=O)C
InChI: InChI=1S/C5H10N2O/c1-6-3-4-7(2)5(6)8/h3-4H2,1-2H3
InChIKey: CYSGHNMQYZDMIA-UHFFFAOYSA-N
Uses
1,3-Dimethyl-2-imidazolidinone (CAS NO.80-73-9) is used as an aprotic solvent. It is also used in a variety of applications including detergents, dyestuffs, electronic materials and in the manufacture of polymers. In many applications, it is a suitable replacement for the carcinogenic solvent HMPA.
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | 2840mg/kg (2840mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) LUNGS, THORAX, OR RESPIRATION: RESPIRATORY STIMULATION | Journal of Medicinal Chemistry. Vol. 11, Pg. 214, 1968. |
| rabbit | LD50 | skin | 930uL/kg (0.93mL/kg) | BEHAVIORAL: TREMOR GASTROINTESTINAL: CHANGES IN STRUCTURE OR FUNCTION OF SALIVARY GLANDS GASTROINTESTINAL: OTHER CHANGES | Acute Toxicity Data. Journal of the American College of Toxicology, Part B. Vol. 1, Pg. 191, 1992. |
| rat | LD50 | oral | 1190uL/kg (1.19mL/kg) | SENSE ORGANS AND SPECIAL SENSES: PTOSIS: EYE BEHAVIORAL: TREMOR SKIN AND APPENDAGES (SKIN): HAIR: OTHER | Acute Toxicity Data. Journal of the American College of Toxicology, Part B. Vol. 1, Pg. 191, 1992. |
Safety Profile
Hazard Codes: 
Xn,Xi
The Risk Statements information of 1,3-dimethyl-2-imidazolidinone:
38: Irritating to the skin
41: Risk of serious damage to eyes
21/22: Harmful in contact with skin and if swallowed
36/38: Irritating to eyes and skin
The Safety Statements information of 1,3-dimethyl-2-imidazolidinone:
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing
36/37/39: Wear suitable protective clothing, gloves and eye/face protection
RIDADR:UN 2810 6.1/PG 3
WGK Germany:3
RTECS:NJ0660000
F:3
Specification
1,3-Dimethyl-2-imidazolidinone , its cas register number is 80-73-9. It also can be called 1,3-Dimethylethyleneurea ; 5-24-01-00054 (Beilstein Handbook Reference) ; Karbomos TsEM ; N,N'-Dimethylethyleneurea ; N,N'-Dimethylimidazolidinone ;
N,N'-Dimethylimidazolidone ; Rhonite 1 . 1,3-Dimethyl-2-imidazolidinone (CAS NO.80-73-9) is a almost colorless, clear liquid.
