5-Chloro-2,3-difluoro-4-iodopyridine
5-Chloro-2,3-difluoro-4-iodopyridine (CAS: 406676-26-4) is a halogenated pyridine derivative with a molecular weight of 275.42 g/mol. This compound serves as a valuable building block in organic synthesis, particularly within the pharmaceutical and agrochemical industries. Its specific substitution pattern offers unique reactivity for constructing complex molecules. Supplied by Tech Serve Solutions with an assay of 95%, it is intended for research and development purposes.
- Synonyms
- C5HClF2IN

Pharmaceutical Intermediate Synthesis
This fluorinated pyridine derivative is utilised as a key intermediate in the synthesis of active pharmaceutical ingredients (APIs). Its functional groups allow for diverse coupling reactions and molecular elaborations.
Agrochemical Research
The compound's structure makes it suitable for incorporation into novel agrochemical agents, contributing to the development of new herbicides, insecticides, or fungicides.
Materials Science
It can be employed in the development of specialised organic materials, leveraging its unique electronic and structural properties for applications in areas like organic electronics.
Organic Synthesis Building Block
As a versatile building block, it facilitates the creation of complex heterocyclic compounds through various cross-coupling and functionalisation reactions.
| Molecular weight | 275.42 |
|---|---|
| Empirical formula | C5HClF2IN |
| Assay | 95% |
| Melting point | 103-109 °C |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38 |
| 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 5-Chloro-2,3-difluoro-4-iodopyridine used for?
+
5-Chloro-2,3-difluoro-4-iodopyridine is primarily used as a building block in organic synthesis, particularly for the development of pharmaceutical intermediates, agrochemicals, and specialised organic materials.
What are the CAS number and formula for this compound?
+
The CAS number for 5-Chloro-2,3-difluoro-4-iodopyridine is 406676-26-4, and its empirical formula is C5HClF2IN.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 5-Chloro-2,3-difluoro-4-iodopyridine with an assay of 95%. This is a technical/research grade material and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How should 5-Chloro-2,3-difluoro-4-iodopyridine be handled?
+
This compound is classified as harmful if swallowed and causes skin and eye irritation, and may cause respiratory irritation (H302-H315-H319-H335). Handle with appropriate personal protective equipment in a well-ventilated area. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection.
Is 5-Chloro-2,3-difluoro-4-iodopyridine a controlled substance?
+
Based on the provided data, there is no indication that 5-Chloro-2,3-difluoro-4-iodopyridine is a controlled substance.
How is this chemical packed and exported by TSS?
+
Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals. Specific packaging and export details for 5-Chloro-2,3-difluoro-4-iodopyridine are available upon request, adhering to all relevant shipping regulations.
How can I request a sample or quote for 5-Chloro-2,3-difluoro-4-iodopyridine?
+
To request a sample or a quote for 5-Chloro-2,3-difluoro-4-iodopyridine, please contact the Tech Serve Solutions sales team through our website or by phone.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis