2,5-Diiodopyridine
2,5-Diiodopyridine (CAS: 116195-81-4) is a halogenated heterocyclic organic compound with the molecular formula C5H3I2N and a molecular weight of 330.89 g/mol. This pyridine derivative serves as a valuable building block in organic synthesis, particularly in the creation of complex molecules and pharmaceutical intermediates. Its reactive iodine substituents make it suitable for cross-coupling reactions and other functionalization strategies. Tech Serve Solutions supplies this compound for research and development purposes.
- Synonyms
- C5H3I2N

Organic Synthesis Intermediate
2,5-Diiodopyridine is utilised as a key intermediate in the synthesis of novel organic compounds. The iodine atoms can be readily displaced or involved in coupling reactions, enabling the construction of more complex molecular architectures.
Pharmaceutical Building Block
This compound serves as a foundational component in the development of potential pharmaceutical agents. Its structure allows for the introduction of specific functionalities required for drug discovery and development pipelines.
Materials Science Research
The diiodopyridine moiety can be incorporated into polymers or functional materials, potentially influencing their electronic or optical properties. Research in this area explores new applications for tailored organic materials.
| Molecular weight | 330.89 |
|---|---|
| Empirical formula | C5H3I2N |
| Assay | 95% |
| Melting point | 152-155 °C(lit.) |



Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H317May cause an allergic skin reaction
- H318Causes serious eye damage
- H334May cause allergy or asthma symptoms if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P342
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-37/38-41-42/43 |
| Safety statements (S) | 26-36-45 |
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 2,5-Diiodopyridine used for?
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2,5-Diiodopyridine is primarily used as a building block in organic synthesis and as an intermediate in the development of pharmaceutical agents and functional materials.
What is the CAS number and formula for 2,5-Diiodopyridine?
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The CAS number for 2,5-Diiodopyridine is 116195-81-4, and its molecular formula is C5H3I2N.
What grade and purity does Tech Serve Solutions supply for 2,5-Diiodopyridine?
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Tech Serve Solutions supplies 2,5-Diiodopyridine with an assay of 95%. This product is intended for research and development use and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
What are the main hazards associated with 2,5-Diiodopyridine?
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2,5-Diiodopyridine is classified as dangerous. It is harmful if swallowed, causes skin irritation, may cause an allergic skin reaction, causes serious eye damage, and may cause allergy or asthma symptoms or breathing difficulties if inhaled. Appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, faceshields, and gloves, should be used when handling this chemical.
How is 2,5-Diiodopyridine packed, shipped, and exported?
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2,5-Diiodopyridine is carefully packed according to international shipping regulations. Tech Serve Solutions has extensive experience in exporting chemicals globally, ensuring compliant and secure delivery to your location.
How can I request a quote or sample for 2,5-Diiodopyridine?
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To request a quote or a sample of 2,5-Diiodopyridine, please contact our sales team through the website or by phone. We will be happy to assist you with your inquiry.
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