2-Chloro-1,3-dimethylimidazolinium chloride
2-Chloro-1,3-dimethylimidazolinium chloride (CAS: 37091-73-9) is a specialised organic compound with the molecular formula C5H10Cl2N2 and a molecular weight of 169.05 g/mol. It functions as a potent activating agent. Its primary applications lie in complex organic synthesis, particularly in the total synthesis of natural products and the formation of cyclic structures. This reagent is essential for chemists engaged in advanced synthetic strategies and novel molecule development.
- IUPAC
- 2-Chloro-4,5-dihydro-1,3-dimethyl-1H-imidazolium chloride,DMC
- Synonyms
- C5H10Cl2N22-Chloro-4,5-dihydro-1,3-dimethyl-1H-imidazolium chlorideDMC

Activating Agent in Organic Synthesis
2-Chloro-1,3-dimethylimidazolinium chloride serves as a highly effective activating agent, facilitating challenging chemical transformations. It is crucial for constructing complex molecular architectures.
Total Synthesis of Natural Products
This compound has been instrumental in the total synthesis of various natural products, including macroviracin A and cycloviracin B1, demonstrating its utility in accessing complex biologically relevant molecules.
Cyclisation Reactions
It is employed in the synthesis of cyclic compounds, such as cyclic silanes. This capability makes it a valuable reagent for ring-forming reactions in organic chemistry.
| Molecular weight | 169.05 |
|---|---|
| Empirical formula | C5H10Cl2N2 |
| Application | Activating agent in total synthesis of macroviracin A,7 cycloviracin B1,8 and cyclic silanes.9 |
| Melting point | 133-140 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 2-Chloro-1,3-dimethylimidazolinium chloride used for?
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2-Chloro-1,3-dimethylimidazolinium chloride is primarily used as an activating agent in organic synthesis, including the total synthesis of natural products like macroviracin A and cycloviracin B1, and in the formation of cyclic structures such as cyclic silanes.
What are the CAS number and formula for this compound?
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The CAS number is 37091-73-9, and the molecular formula is C5H10Cl2N2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound as a research or technical grade chemical. We do not represent it as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated in the product specifications. Please refer to the product specifications for assay information.
What are the safety and handling precautions for 2-Chloro-1,3-dimethylimidazolinium chloride?
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This compound is classified as a Warning. It causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask type N95, eyeshields, and gloves, should be worn. Ensure adequate ventilation and avoid breathing dust. In case of eye contact, rinse cautiously with water for several minutes (P305 + P351 + P338).
Is this chemical packed and shipped internationally by TSS?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, and we can pack and ship 2-Chloro-1,3-dimethylimidazolinium chloride worldwide.
How can I request a sample or quote for 2-Chloro-1,3-dimethylimidazolinium chloride?
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To request a sample or a quote, please use the contact form on our website or contact our sales team directly. Please specify the quantity required and your delivery location.
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