2-Chloro-3-hydroxy-6-iodopyridine
2-Chloro-3-hydroxy-6-iodopyridine (CAS: 185220-68-2) is a halogenated pyridine derivative with the molecular formula C5H3ClINO and a molecular weight of 255.44 g/mol. This compound serves as a valuable building block in organic synthesis, particularly within the realm of heterocyclic chemistry. Its distinct structural features, incorporating both chlorine and iodine substituents alongside a hydroxyl group on the pyridine ring, enable diverse chemical transformations for the development of novel molecules.

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of complex organic molecules and novel chemical entities. The presence of multiple reactive sites allows for regioselective functionalization.
Pharmaceutical Research
Serves as a structural motif or precursor in the research and development of potential pharmaceutical agents, leveraging its heterocyclic nature.
Materials Science Exploration
Can be employed in the exploration of new materials with specific electronic or optical properties, owing to its halogenated heterocyclic structure.
| Molecular weight | 255.44 |
|---|---|
| Empirical formula | C5H3ClINO |
| Assay | 97% |
| Melting point | 141-145 °C |


Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Water hazard class (WGK, DE) | 1 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-37/38-41 |
| Safety statements (S) | 26-39 |
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 2-Chloro-3-hydroxy-6-iodopyridine used for?
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2-Chloro-3-hydroxy-6-iodopyridine (CAS: 185220-68-2) is primarily used as a building block in organic synthesis and for research in pharmaceutical development and materials science.
What is the CAS number and chemical formula for this compound?
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The CAS number is 185220-68-2, and the empirical formula is C5H3ClINO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Chloro-3-hydroxy-6-iodopyridine with a purity of 97% (assay).
What are the main safety hazards associated with this chemical?
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This compound is classified as Danger, with hazards including H302 (Harmful if swallowed), H315 (Causes skin irritation), H318 (Causes serious eye damage), and H335 (May cause respiratory irritation). Always handle with appropriate personal protective equipment in a well-ventilated area.
Is 2-Chloro-3-hydroxy-6-iodopyridine a controlled substance?
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Based on the provided data, there is no indication that 2-Chloro-3-hydroxy-6-iodopyridine is a controlled substance.
How is this chemical packed and exported by TSS?
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Tech Serve Solutions is a global supplier and exporter of fine chemicals, offering this product for international shipment.
How can I request a sample or quote for 2-Chloro-3-hydroxy-6-iodopyridine?
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Please contact our sales team to request a sample or a quotation for 2-Chloro-3-hydroxy-6-iodopyridine.
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