2-Hydroxy-5-nitropyridine
2-Hydroxy-5-nitropyridine (CAS: 5418-51-9; Formula: C5H4N2O3; Molar Mass: 140.10 g/mol) is a pyridine derivative utilised as a chemical intermediate. It serves as a valuable building block in organic synthesis, particularly for the construction of heterocyclic compounds. This compound is primarily employed in research and development settings for the creation of novel molecules and materials.
- IUPAC
- 5-Nitro-2-pyridinol

Organic Synthesis Intermediate
2-Hydroxy-5-nitropyridine is a key building block for introducing the nitropyridine moiety into more complex molecular structures. Its reactivity allows for various derivatisations, essential in multi-step synthetic pathways.
Heterocyclic Chemistry
As a substituted pyridine, this compound is integral in heterocyclic chemistry research. It can be used to synthesise various functionalised pyridines and related heterocyclic systems with potential applications in medicinal chemistry and materials science.
Research and Development
This chemical is widely used in academic and industrial R&D laboratories for exploring new synthetic methodologies and discovering novel compounds. It enables chemists to explore the properties and potential uses of functionalised pyridine derivatives.
| Molecular weight | 140.10 |
|---|---|
| Empirical formula | C5H4N2O3 |
| Assay | 97% |
| Melting point | 188-191 °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) | 26-37/39 |
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-Hydroxy-5-nitropyridine used for?
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2-Hydroxy-5-nitropyridine is primarily used as an intermediate and building block in organic synthesis and heterocyclic chemistry research and development.
What are the CAS number and formula for 2-Hydroxy-5-nitropyridine?
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The CAS number is 5418-51-9, and the empirical formula is C5H4N2O3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Hydroxy-5-nitropyridine with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
What are the primary hazards associated with handling 2-Hydroxy-5-nitropyridine?
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2-Hydroxy-5-nitropyridine is a warning substance that causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including dust mask type N95 (US), eyeshields, and gloves, should be used.
How is 2-Hydroxy-5-nitropyridine exported and shipped?
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Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 2-Hydroxy-5-nitropyridine, adhering to all relevant shipping and export regulations.
How can I request a quote or sample for 2-Hydroxy-5-nitropyridine?
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To request a quote or sample of 2-Hydroxy-5-nitropyridine, please contact our sales department through the website or by phone.
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