2-Chloro-5-methyl-3-nitropyridine
2-Chloro-5-methyl-3-nitropyridine (CAS: 23056-40-8, C6H5ClN2O2) is a halogenated pyridine derivative with a molecular weight of 172.57 g/mol. This chemical serves as a valuable building block in organic synthesis, particularly within the pharmaceutical and agrochemical industries. Its specific structure allows for targeted chemical transformations, making it a key intermediate for the development of more complex molecules. Supplied by TSS with an assay of 97%, it is suitable for research and development purposes.

Organic Synthesis Intermediate
This compound is frequently utilised as a versatile building block in multi-step organic synthesis pathways. Its reactive chlorine and nitro groups enable diverse chemical modifications for creating novel compounds.
Pharmaceutical Research
2-Chloro-5-methyl-3-nitropyridine is employed in the research and development of new pharmaceutical agents. It acts as a key intermediate in the synthesis of potential drug candidates, particularly those involving heterocyclic scaffolds.
Agrochemical Development
The compound finds application in the development of novel agrochemicals. Its structure can be incorporated into molecules designed for crop protection and pest management.
| Molecular weight | 172.57 |
|---|---|
| Empirical formula | C6H5ClN2O2 |
| Assay | 97% |
| Melting point | 45-50 °C |


Hazard statements
- H301Toxic if swallowed
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-37/38-41 |
| Safety statements (S) | 26-39 |
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-methyl-3-nitropyridine used for?
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2-Chloro-5-methyl-3-nitropyridine (CAS: 23056-40-8) is primarily used as a building block in organic synthesis for pharmaceutical and agrochemical research and development.
What are the CAS number and formula for 2-Chloro-5-methyl-3-nitropyridine?
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The CAS number is 23056-40-8, and the empirical formula is C6H5ClN2O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Chloro-5-methyl-3-nitropyridine with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
What are the primary safety concerns when handling this chemical?
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This compound is classified as Dangerous. It is harmful if swallowed (H301), causes skin irritation (H315), causes serious eye damage (H318), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask (type N95 or equivalent), eyeshields, face shields, and gloves, must be used.
How is this chemical packed and shipped?
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This chemical is shipped according to UN 2811 regulations, classified under hazard class 6.1 with Packing Group III. TSS is an experienced global supplier and exporter of fine chemicals.
How can I request a sample or quote?
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To request a sample or a quotation for 2-Chloro-5-methyl-3-nitropyridine, please contact our sales team through the website or by phone, providing your specific requirements and shipping details.
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