2,3-Dichloro-4-iodopyridine
2,3-Dichloro-4-iodopyridine (CAS: 889865-45-6) is a halogenated pyridine derivative with a molecular weight of 273.89 g/mol. This compound serves as a valuable building block in organic synthesis, particularly in the development of novel chemical entities. Its structure, featuring chlorine and iodine substituents on a pyridine ring, allows for diverse chemical transformations. It is primarily utilised in research and development settings for the creation of complex molecules.
- Synonyms
- C5H2Cl2IN

Organic Synthesis Intermediate
2,3-Dichloro-4-iodopyridine functions as a key intermediate in complex organic synthesis pathways. Its halogen functionalities enable various cross-coupling reactions and nucleophilic substitutions for building intricate molecular frameworks.
Pharmaceutical Research
This pyridine derivative can be employed in the synthesis of potential pharmaceutical agents. The pyridine core and halogen substituents offer strategic points for modification in the discovery of new drug candidates.
Agrochemical Development
The compound's unique structure may find application in the research and development of new agrochemicals. Its halogenated heterocyclic nature can be advantageous for designing molecules with specific biological activities.
Material Science
2,3-Dichloro-4-iodopyridine can be used as a precursor in the synthesis of specialised materials. Its properties may be leveraged in the development of functional organic materials for various technological applications.
| Molecular weight | 273.89 |
|---|---|
| Empirical formula | C5H2Cl2IN |
| Assay | 97% |
| Melting point | 109-113 °C |

Hazard statements
- H301Toxic if swallowed
- H319Causes serious eye irritation
Precautionary statements
- P301IF SWALLOWED
- P305IF IN EYES
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36 |
| Safety statements (S) | 26 |
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 2,3-Dichloro-4-iodopyridine used for?
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2,3-Dichloro-4-iodopyridine is primarily used as a building block in organic synthesis, particularly in pharmaceutical and agrochemical research for the creation of novel chemical entities.
What is the CAS number and molecular formula for 2,3-Dichloro-4-iodopyridine?
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The CAS number is 889865-45-6 and the empirical formula is C5H2Cl2IN.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,3-Dichloro-4-iodopyridine with a minimum purity of 97%. We do not represent this product as USP, BP, or EP grade.
How should 2,3-Dichloro-4-iodopyridine be handled safely?
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2,3-Dichloro-4-iodopyridine is classified as toxic if swallowed and causes serious eye irritation. Handle with appropriate personal protective equipment in a well-ventilated area, avoiding contact with skin, eyes, and clothing. Refer to the Safety Data Sheet (SDS) for detailed handling instructions.
Is 2,3-Dichloro-4-iodopyridine a controlled substance?
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Based on the provided data, there is no indication that 2,3-Dichloro-4-iodopyridine is a controlled substance.
How is 2,3-Dichloro-4-iodopyridine packed, shipped, and exported?
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2,3-Dichloro-4-iodopyridine is packed according to relevant regulations for hazardous materials, including UN 2811 classification. TSS can export this chemical globally, adhering to all international shipping and customs requirements.
How can I request a sample or quote for 2,3-Dichloro-4-iodopyridine?
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To request a sample or quote, please contact the Tech Serve Solutions sales team through our website or by phone, providing your specific requirements and shipping details.
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