2-Chloro-3,5-dinitropyridine
2-Chloro-3,5-dinitropyridine (CAS: 2578-45-2), with molecular formula C5H2ClN3O4 and a molecular weight of 203.54 g/mol, is a halogenated heterocyclic compound. It serves as a valuable building block in organic synthesis, particularly for the development of materials with specific optical properties. Its utility extends to applications in non-linear optical (NLO) materials, organic electronics, and photonic materials, owing to its unique chemical structure.
- Synonyms
- C5H2ClN3O42-Chloro-3,5-dinitropyridine

Organic Synthesis Intermediate
This compound functions as a versatile intermediate in the synthesis of more complex organic molecules. Its reactive sites allow for various chemical transformations, making it useful in multi-step synthetic routes.
Non-Linear Optical (NLO) Materials
2-Chloro-3,5-dinitropyridine is employed in the creation of NLO chromophores and materials. These materials are critical for applications in telecommunications, optical computing, and frequency conversion due to their ability to modify light properties.
Photonic and Optical Materials
The compound's structure is conducive to developing materials for photonic devices and advanced optical applications. It can be incorporated into polymers or small molecules to achieve desired optical functionalities.
Organic and Printed Electronics
It finds use as a building block in the research and development of materials for organic electronics, including components for organic light-emitting diodes (OLEDs) and organic field-effect transistors (OFETs).
| Molecular weight | 203.54 |
|---|---|
| Empirical formula | C5H2ClN3O4 |
| Assay | 99% |
| Melting point | 63-65 °C(lit.) |

Hazard statements
- H300Fatal if swallowed
Precautionary statements
- P264Wash thoroughly after handling
- P301IF SWALLOWED
| Protective equipment | Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 25 |
| Safety statements (S) | 26-36/37/39-45 |
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-3,5-dinitropyridine used for?
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2-Chloro-3,5-dinitropyridine is primarily used as a building block in organic synthesis for creating non-linear optical (NLO) materials, photonic and optical materials, and components for organic and printed electronics.
What is the CAS number and formula for 2-Chloro-3,5-dinitropyridine?
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The CAS number for 2-Chloro-3,5-dinitropyridine is 2578-45-2 and its empirical formula is C5H2ClN3O4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Chloro-3,5-dinitropyridine with an assay of 99%. We do not represent this product as USP, BP, or EP grade.
What are the primary safety concerns when handling 2-Chloro-3,5-dinitropyridine?
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2-Chloro-3,5-dinitropyridine is classified as Danger, with hazard statement H300 (Fatal if swallowed). It requires the use of eyeshields, faceshields, gloves, and a P2 respirator cartridge. Strict handling protocols are necessary to avoid ingestion and ensure safety.
How is 2-Chloro-3,5-dinitropyridine packed and shipped by TSS?
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Tech Serve Solutions exports chemicals globally, adhering to all relevant shipping regulations. Packaging is designed to ensure product integrity and safety during transit. Please contact us for specific shipping and export details.
How can I request a sample or quote for 2-Chloro-3,5-dinitropyridine?
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To request a sample or a quotation for 2-Chloro-3,5-dinitropyridine, please use the contact form on our website or email our sales department directly, providing your details and the product's CAS number.
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