1-Methylimidazole CAS 616-47-7,1-Methylimidazole, CAS 616-47-7
1-methylimidazole (CAS 616-47-7), as a multifunctional fine chemical intermediate, its core value lies in
616-47-7
C4H6N2
82.1
210-484-7
| CAS | 616-47-7 |
| Molecular formula | C4H6N2 |
| Molecular weight | 82.1 |
| EIENCS | 210-484-7 |
| Form | Liquid |
| Melting point | −60 °C |
| boling point | 198°C |
| Density | 1.03 g/mL at 25°C |
| Solubility | Miscible with water. |
| PKA | 6.95(at 25℃) |
| Color | Clear colorless to yellow |
| Storage temp | Store below +30°C. |
Molecular formula: C₄H₆N₂
Molecular weight: 82.11 g/mol
Structure: A methyl group (-CH ₃) is attached to the nitrogen atom at position 1 of the imidazole ring, forming a weakly basic heterocyclic compound.
Appearance: Colorless to pale yellow transparent liquid with a pungent odor similar to ammonia.
1-methylimidazole (CAS 616-47-7), as a multifunctional fine chemical intermediate, its core value lies in:
Key additives for polymer materials: The core role in promoting the curing of epoxy resin and regulating the foaming of polyurethane;
The cornerstone of pharmaceutical synthesis: Supporting the efficient synthesis of nucleic acid drugs and cardiovascular/anti-infective drugs;
Green chemical carriers: Ionic liquid synthesis facilitates the development of low-toxicity solvent systems
1. Polymer materials industry
● Epoxy resin curing agent
○ As an accelerator for anhydride curing agents, it shortens the curing time and enhances the mechanical strength of the products (such as fiberglass reinforced plastic and electronic potting compound).
● Polyurethane catalyst
○ It is used for the synthesis of semi-rigid foams and microcellular elastomers to regulate the foaming rate and cell structure.
2. Medicine and Biochemistry
● Nucleic acid synthesis: A key catalyst for the synthesis of deoxyribonucleic acid (DNA).
● Drug intermediates: Synthetic antihypertensive drug losartan, antifungal drug nidazofenone, etc.
3. Synthesis of functional chemicals
● Preparation of ionic liquids: As a cationic parent, imidazole ionic liquids (such as [Bmim]BF₄) are synthesized after quaternization.
● Pesticide intermediates: Used in the synthesis of fungicides and plant growth regulators.
4. Other fields
● Metal chelating agents: They form stable complexes with transition metals (Co²⁺, Cu²⁺) and are used in electroplating or analytical chemistry.
● Natural gas hydrate accelerator: Increase the conversion rate of ethylene hydrate to 80%.
● Hazard identification
○ GHS classification: Corrosiveness (GHS05), acute toxicity (GHS06).
● Risk terminology
○ R21/22: Harmful to skin contact and ingestion
○ R34: Causes burns
● Safety protection
○ When operating, anti-corrosion gloves, goggles and gas masks must be worn.
○ The concentration limit in the workplace is ≤5 mg/m³.
● Toxicity data
○ Oral administration of LD₅₀ in rats: 1400 mg/kg (poisoning level).
○ It has a strong irritant effect on the skin, eyes and respiratory tract. Rinse immediately and seek medical attention after contact.
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