2-Butyl-5-chloro-1H-imidazole-4-carboxaldehyde
2-Butyl-5-chloro-1H-imidazole-4-carboxaldehyde (CAS 83857-96-9) is a specialized organic compound with a molecular weight of 186.64 g/mol. This halogenated heterocyclic imidazole derivative serves as a valuable building block in organic synthesis. Its structure, featuring both an aldehyde and a chlorine substituent on the imidazole ring, makes it a versatile intermediate for creating more complex molecules, particularly in the development of novel chemical entities and research compounds.
- IUPAC
- 2-Butyl-4-chloro-5-formylimidazole

Organic Synthesis Intermediate
This compound functions as a key intermediate in the synthesis of diverse organic molecules. Its reactive aldehyde group and chloro-substituted imidazole core allow for various chemical transformations and functionalizations.
Pharmaceutical Research
As a heterocyclic building block, it is employed in the exploration of new pharmaceutical candidates. Its structure may be incorporated into molecules designed for biological activity and drug discovery programs.
Chemical Research and Development
Utilized in R&D laboratories for the creation of novel compounds and materials. Its specific substitution pattern on the imidazole ring offers unique synthetic possibilities for chemists.
| Molecular weight | 186.64 |
|---|---|
| Linear formula | C3N2HClCHOCH2CH2CH2CH3 |
| Assay | 97% |
| Melting point | 97-100 °C(lit.) |


Hazard statements
- H317May cause an allergic skin reaction
- H411Toxic to aquatic life with long-lasting effects
Precautionary statements
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xi,N |
| Risk statements (R) | 43-51/53 |
| Safety statements (S) | 24-37-61 |
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-Butyl-5-chloro-1H-imidazole-4-carboxaldehyde used for?
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2-Butyl-5-chloro-1H-imidazole-4-carboxaldehyde (CAS 83857-96-9) is primarily used as an intermediate in organic synthesis, particularly in pharmaceutical research and chemical development for creating complex molecules.
What are the CAS number and formula for this compound?
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The CAS number is 83857-96-9. The linear formula is C3N2HClCHOCH2CH2CH2CH3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this product at a purity of 97%. We do not represent it as USP, BP, EP, or pharmacopoeia grade.
How should 2-Butyl-5-chloro-1H-imidazole-4-carboxaldehyde be handled safely?
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This compound is a Warning substance (GHS07, GHS09) that can cause an allergic skin reaction (H317) and is toxic to aquatic life with long-lasting effects (H411). Handle with appropriate personal protective equipment, including a dust mask (N95), eyeshields, face shields, and gloves, in a well-ventilated area and avoid release to the environment.
How is this chemical packed, shipped, and exported?
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As a global supplier, Tech Serve Solutions packages and exports chemicals in compliance with international shipping regulations, including UN 3077 (9/PGIII) for environmentally hazardous substances.
How can I request a sample or quote for 2-Butyl-5-chloro-1H-imidazole-4-carboxaldehyde?
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Please contact our sales team or use the online inquiry form to request a sample or a quotation for this product.
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