2-Chloro-3-fluoropyridine-4-carboxaldehyde
2-Chloro-3-fluoropyridine-4-carboxaldehyde (CAS: 329794-28-7) is a halogenated pyridine derivative with the molecular formula C6H3ClFNO and a molecular weight of 159.55 g/mol. This compound serves as a valuable building block in organic synthesis. It is primarily utilised in chemical research and development, particularly for the construction of more complex heterocyclic molecules. Its specific substitution pattern makes it an important intermediate for specialised chemical applications.
- IUPAC
- 2-Chloro-3-fluoro-4-formylpyridine,2-Chloro-3-fluoroisonicotinaldehyde
- Synonyms
- 2-Chloro-3-fluoro-4-formylpyridine2-Chloro-3-fluoroisonicotinaldehyde

Organic Synthesis Intermediate
Utilised as a key building block in multi-step organic synthesis pathways. Its reactive aldehyde and halogenated pyridine functionalities allow for diverse chemical transformations.
Pharmaceutical Research
Serves as a precursor in the development of novel pharmaceutical agents. The pyridine core is prevalent in many biologically active molecules.
Agrochemical Development
Can be employed in the synthesis of new agrochemicals, leveraging its unique halogenated heterocyclic structure for potential bioactivity.
Materials Science
May be incorporated into the synthesis of specialised materials or ligands where its structural features are advantageous.
| Molecular weight | 159.55 |
|---|---|
| Empirical formula | C6H3ClFNO |
| Assay | 97% |
| Density | 1.424 g/mL at 25 °C |
| Refractive index | n20/D 1.543 |
| Storage temperature | −20°C |

Hazard statements
- H302Harmful if swallowed
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Flash point | 108 °C / 226.4 °F |
|---|---|
| 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-Chloro-3-fluoropyridine-4-carboxaldehyde used for?
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2-Chloro-3-fluoropyridine-4-carboxaldehyde (CAS: 329794-28-7) is primarily used as a building block in organic synthesis, particularly in pharmaceutical and agrochemical research for constructing more complex molecules.
What are the CAS number and molecular formula for 2-Chloro-3-fluoropyridine-4-carboxaldehyde?
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The CAS number is 329794-28-7 and the molecular formula is C6H3ClFNO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Chloro-3-fluoropyridine-4-carboxaldehyde with a minimum purity of 97%. This product is suitable for research and technical applications. TSS does not represent this product as USP, BP, or EP grade.
How should 2-Chloro-3-fluoropyridine-4-carboxaldehyde be handled safely?
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2-Chloro-3-fluoropyridine-4-carboxaldehyde is classified with GHS07 symbol and a Warning signal word. It carries hazard statements H302 (Harmful if swallowed) and H319 (Causes serious eye irritation). Handle with appropriate personal protective equipment, avoid contact with skin and eyes, and ensure good ventilation. Refer to the Safety Data Sheet (SDS) for full details.
Is 2-Chloro-3-fluoropyridine-4-carboxaldehyde a controlled substance?
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The provided data does not indicate that 2-Chloro-3-fluoropyridine-4-carboxaldehyde is a controlled substance.
How is 2-Chloro-3-fluoropyridine-4-carboxaldehyde packed and shipped?
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This compound is stored at -20°C. Packaging and shipping comply with all relevant regulations for chemical export. Please contact us for specific shipping details to your region.
How can I request a sample or quote for 2-Chloro-3-fluoropyridine-4-carboxaldehyde?
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To request a sample or a quote, please use the 'Request Sample' or 'Enquire' buttons on our website, or contact our sales team directly with your requirements.
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