3-acetyl-2-chloropyridine
3-acetyl-2-chloropyridine (CAS: 55676-21-6), with the empirical formula C7H6ClNO and a molecular weight of 155.58 g/mol, is a pyridine derivative utilised as a building block in organic synthesis. Its chemical structure allows for versatile reactions, making it a valuable intermediate in the preparation of more complex molecules, particularly within the pharmaceutical and fine chemical industries. It serves as a key component in the development of novel compounds.

Heterocyclic Synthesis
This compound functions as a crucial heterocyclic building block. It is employed in the synthesis of pyridine-containing compounds, which are prevalent motifs in pharmaceuticals and agrochemicals.
Pharmaceutical Intermediate
3-acetyl-2-chloropyridine serves as an intermediate in the multi-step synthesis of active pharmaceutical ingredients (APIs). Its specific functional groups enable its incorporation into diverse drug discovery programmes.
Chemical Research
It is utilised in academic and industrial research settings for the development of new synthetic methodologies and the exploration of novel chemical entities. Its reactivity profile makes it an interesting substrate for various organic transformations.
| Molecular weight | 155.58 |
|---|---|
| Empirical formula | C7H6ClNO |

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
| Flash point | >110 °C / >230 °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 3-acetyl-2-chloropyridine used for?
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3-acetyl-2-chloropyridine (CAS: 55676-21-6) is primarily used as a building block and intermediate in organic synthesis, particularly for the preparation of pharmaceuticals and other complex heterocyclic compounds.
What are the CAS number and empirical formula for 3-acetyl-2-chloropyridine?
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The CAS number for 3-acetyl-2-chloropyridine is 55676-21-6, and its empirical formula is C7H6ClNO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-acetyl-2-chloropyridine with a purity of 97%. This product is supplied for research and development purposes and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How should 3-acetyl-2-chloropyridine be handled?
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3-acetyl-2-chloropyridine is a Warning substance. It may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). It is also harmful if swallowed (H302). Handle in a well-ventilated area, wear appropriate protective gloves and eye/face protection, and avoid breathing dust/fume/gas/mist/vapours/spray (P261, P305 + P351 + P338).
Is 3-acetyl-2-chloropyridine a controlled substance?
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The provided data does not indicate that 3-acetyl-2-chloropyridine is a controlled substance.
How is 3-acetyl-2-chloropyridine packed and exported by TSS?
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Tech Serve Solutions packs and exports 3-acetyl-2-chloropyridine according to international shipping regulations for chemicals, ensuring safe transit and compliance for global clients.
How can I request a sample or quote for 3-acetyl-2-chloropyridine?
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To request a sample or obtain a quote for 3-acetyl-2-chloropyridine, please contact our sales team via the website or provide your details through the 'Enquire' button on the product page.
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