6-Chloropyridine-2-carboxylic acid
6-Chloropyridine-2-carboxylic acid (CAS 4684-94-0) is a halogenated heterocyclic building block with the molecular formula C6H4ClNO2 and a molecular weight of 157.55 g/mol. This compound serves as a versatile intermediate in organic synthesis, particularly in the development of pharmaceuticals and agrochemicals. Its pyridine core and carboxylic acid functionality allow for diverse chemical transformations, making it a valuable reagent for constructing complex molecular architectures.
- IUPAC
- 6-Chloropicolinic acid
- Synonyms
- 6-Chloropicolinic acid

Pharmaceutical Intermediate
Utilised in the synthesis of active pharmaceutical ingredients (APIs), leveraging its halogenated pyridine structure for targeted drug development.
Agrochemical Synthesis
Employed as a building block for novel herbicides, insecticides, and fungicides, contributing to the development of advanced crop protection agents.
Organic Synthesis Reagent
A key component in various organic reactions, facilitating the introduction of the 6-chloropyridine moiety into larger molecules.
Material Science Research
Potential applications in the development of specialised polymers and functional materials requiring heterocyclic components.
| Molecular weight | 157.55 |
|---|---|
| Empirical formula | C6H4ClNO2 |
| Assay | 97% |
| Melting point | 185-190 °C |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 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 6-Chloropyridine-2-carboxylic acid used for?
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6-Chloropyridine-2-carboxylic acid is primarily used as an intermediate in organic synthesis, particularly in the development of pharmaceuticals and agrochemicals. It acts as a building block for creating more complex molecular structures.
What is the CAS number and formula for 6-Chloropyridine-2-carboxylic acid?
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The CAS number is 4684-94-0, and the empirical formula is C6H4ClNO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 6-Chloropyridine-2-carboxylic acid with a purity of 97%. This product is intended for research and chemical synthesis purposes and is not represented as USP, BP, EP, or any other pharmacopoeial grade.
What are the safety and handling precautions for this chemical?
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This compound is classified as an irritant. It may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, should be worn. Ensure adequate ventilation and avoid breathing dust.
How is 6-Chloropyridine-2-carboxylic acid packed, shipped, and exported?
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Products are carefully packed according to international shipping regulations. Tech Serve Solutions is a global supplier and exporter experienced in handling and shipping fine chemicals worldwide.
How can I request a quote or sample?
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To request a quote or a sample of 6-Chloropyridine-2-carboxylic acid, please visit our website or contact our sales department directly with your inquiry.
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