2-Chloro-5-(trifluoromethyl)pyridine-3-carboxylic acid
2-Chloro-5-(trifluoromethyl)pyridine-3-carboxylic acid (CAS: 505084-59-3) is a fluorinated pyridine derivative with the molecular formula C7H3ClF3NO2 and a molecular weight of 225.55 g/mol. This versatile building block is valuable in organic synthesis, particularly for creating complex fluorinated heterocyclic compounds. Its structure lends itself to applications in agrochemical and pharmaceutical research and development, serving as a key intermediate in the synthesis of novel active ingredients.

Organic Synthesis Intermediate
Utilised as a crucial building block in multi-step organic syntheses, enabling the construction of complex molecular architectures. Its reactivity profile is well-suited for derivatisation and incorporation into target molecules.
Agrochemical Research
Serves as a precursor for the development of new pesticides, herbicides, and fungicides. The trifluoromethyl and chloro-pyridine motifs can impart desirable biological activity and physicochemical properties to agrochemical candidates.
Pharmaceutical Intermediate
Employed in the discovery and synthesis of potential drug candidates. The unique structural features can contribute to receptor binding, metabolic stability, and bioavailability of pharmaceutical compounds.
Fluorinated Heterocycle Synthesis
A key reagent for introducing the trifluoromethylpyridine moiety into larger molecules, facilitating research into novel fluorinated heterocyclic compounds with diverse applications.
| Molecular weight | 225.55 |
|---|---|
| Empirical formula | C7H3ClF3NO2 |
| Assay | 97% |
| Melting point | 173-178 °C |

Hazard statements
- H301Toxic if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P301IF SWALLOWED
- P305IF IN EYES
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 25-36/37/38 |
| Safety statements (S) | 26-45 |
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-5-(trifluoromethyl)pyridine-3-carboxylic acid used for?
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2-Chloro-5-(trifluoromethyl)pyridine-3-carboxylic acid is primarily used as a building block in organic synthesis, particularly for the development of agrochemicals and pharmaceuticals. It is instrumental in creating complex fluorinated heterocyclic compounds.
What are the CAS number and formula for 2-Chloro-5-(trifluoromethyl)pyridine-3-carboxylic acid?
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The CAS number is 505084-59-3, and its molecular formula is C7H3ClF3NO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Chloro-5-(trifluoromethyl)pyridine-3-carboxylic acid at an assay of 97%. This is a technical/research grade material, and TSS does not represent it as USP, BP, EP, or any other pharmacopoeia grade.
How should 2-Chloro-5-(trifluoromethyl)pyridine-3-carboxylic acid be handled?
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This compound is classified as Dangerous. It is toxic if swallowed (H301), causes skin irritation (H315), causes serious eye irritation (H319), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment in a well-ventilated area. Refer to the safety data sheet for detailed handling and emergency procedures. Immediate medical attention is required in case of exposure.
Is this product available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals and laboratory reagents. We can accommodate export requests for 2-Chloro-5-(trifluoromethyl)pyridine-3-carboxylic acid.
How can I request a sample or a quote for 2-Chloro-5-(trifluoromethyl)pyridine-3-carboxylic acid?
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To request a sample or a quote, please contact our sales team through the website or by phone. Provide the product name and CAS number (505084-59-3) for prompt service.
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