3,5-Dichloropyridine N-oxide
3,5-Dichloropyridine N-oxide (CAS: 15177-57-8), a halogenated pyridine derivative with the molecular formula C5H3Cl2NO and a molecular weight of 163.99 g/mol, serves as a versatile building block in organic synthesis. Its structure, featuring two chlorine atoms on the pyridine ring and an N-oxide functionality, makes it a valuable intermediate for creating more complex molecules. This compound is primarily utilised in chemical research and development for the synthesis of novel organic compounds.
- Synonyms
- C5H3Cl2NO3,5-Dichloropyridine 1-oxide

Organic Synthesis Intermediate
3,5-Dichloropyridine N-oxide functions as a key intermediate in the construction of diverse organic molecules. Its reactive sites allow for various chemical transformations, making it valuable in multi-step syntheses.
Heterocyclic Chemistry
As a substituted pyridine N-oxide, this compound is important in heterocyclic chemistry research. It enables the introduction of specific pyridine scaffolds into target molecules, potentially for pharmaceutical or agrochemical applications.
Research and Development
This chemical is employed in laboratory settings for R&D purposes, contributing to the discovery and development of new chemical entities and synthetic methodologies.
| Molecular weight | 163.99 |
|---|---|
| Empirical formula | C5H3Cl2NO |
| Assay | 98% |
| Melting point | 110-113 °C(lit.) |

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) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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 3,5-Dichloropyridine N-oxide primarily used for?
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3,5-Dichloropyridine N-oxide is primarily used as a building block and intermediate in organic synthesis and research and development for creating complex organic molecules.
What is the CAS number and chemical formula for 3,5-Dichloropyridine N-oxide?
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The CAS number is 15177-57-8 and the chemical formula is C5H3Cl2NO.
What grade and purity does Tech Serve Solutions supply for 3,5-Dichloropyridine N-oxide?
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Tech Serve Solutions supplies 3,5-Dichloropyridine N-oxide with a purity of 98% (assay). This product is suitable for research and technical applications. We do not represent it as USP, BP, EP, or pharmacopoeia grade.
How should 3,5-Dichloropyridine N-oxide be handled safely?
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3,5-Dichloropyridine N-oxide is classified as a Warning substance. It can cause skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment, including Eyeshields, Gloves, and a dust mask type N95 (US). Ensure adequate ventilation. In case of contact, follow precautionary statements P261 and P305 + P351 + P338.
How is 3,5-Dichloropyridine N-oxide typically packed and shipped?
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Tech Serve Solutions packs and ships chemicals according to international regulations for safe transport. Specific packaging details can be provided upon request.
How can I request a quote or sample for 3,5-Dichloropyridine N-oxide?
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To request a quote or sample, please contact our sales team through the website or by phone, providing the product name (3,5-Dichloropyridine N-oxide) and CAS number (15177-57-8).
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