5-Chloro-1-methylimidazole
5-Chloro-1-methylimidazole (CAS 872-49-1, C4H5ClN2) is a halogenated heterocyclic compound with a molecular weight of 116.55 g/mol. This imidazole derivative serves as a versatile building block in organic synthesis. It is primarily utilised in chemical research and development for the creation of more complex molecules, particularly within the pharmaceutical and agrochemical sectors. Its structural features make it a valuable intermediate.

Organic Synthesis Intermediate
5-Chloro-1-methylimidazole is employed as a key intermediate in the synthesis of various organic compounds. Its reactive chlorine atom and imidazole ring allow for diverse chemical transformations.
Pharmaceutical Research
This compound finds application in medicinal chemistry for the development of novel drug candidates. It can be incorporated into molecular structures to explore potential therapeutic properties.
Agrochemical Development
The molecule serves as a building block in the synthesis of new agrochemicals. Its heterocyclic nature is often beneficial for biological activity in crop protection agents.
Material Science
It may be used in the exploration of new materials where functionalised heterocyclic units are required for specific properties.
| Molecular weight | 116.55 |
|---|---|
| Empirical formula | C4H5ClN2 |
| Assay | 98% |
| Boiling point | 82-85 °C/11 mmHg(lit.) |
| Density | 1.25 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.511(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 | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 96 °C / 204.8 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-37/39 |
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 5-Chloro-1-methylimidazole used for?
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5-Chloro-1-methylimidazole (CAS 872-49-1) is primarily used as a building block in organic synthesis, particularly in the research and development of pharmaceutical and agrochemical compounds.
What are the CAS number and chemical formula for 5-Chloro-1-methylimidazole?
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The CAS number for 5-Chloro-1-methylimidazole is 872-49-1, and its chemical formula is C4H5ClN2.
What grade and purity does Tech Serve Solutions supply for 5-Chloro-1-methylimidazole?
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Tech Serve Solutions supplies 5-Chloro-1-methylimidazole with an assay of 98%. This product is suitable for research and synthesis purposes. We do not represent it as USP, BP, EP, or any other pharmacopoeia grade.
How should 5-Chloro-1-methylimidazole be handled safely?
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5-Chloro-1-methylimidazole is classified with GHS07 symbol and carries a Warning signal word. It causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment, including eyeshields and gloves, and ensure adequate ventilation. Refer to the Safety Data Sheet for full details.
Is 5-Chloro-1-methylimidazole a controlled substance?
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Based on the provided data, there is no indication that 5-Chloro-1-methylimidazole (CAS 872-49-1) is a controlled substance.
How is 5-Chloro-1-methylimidazole packed and exported by TSS?
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Tech Serve Solutions, a global supplier and exporter since 1998, packs and exports fine chemicals like 5-Chloro-1-methylimidazole according to international shipping regulations and customer requirements.
How can I request a quote or sample for 5-Chloro-1-methylimidazole?
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To request a quote or a sample of 5-Chloro-1-methylimidazole, please contact our sales team through the website or by calling our offices directly.
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