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Atomfair 5-Nitropyridin-2-ol C5H4N2O3 CAS 5418-51-9

5-Nitropyridin-2-ol (CAS No. 5418-51-9) is a high-purity nitro-substituted pyridine derivative with the molecular formula C5H4N2O3. This compound, also known by its IUPAC name 5-nitro-1H-pyridin-2-one , is a versatile heterocyclic building block widely used in pharmaceutical, agrochemical, and materials science research. The presence of both nitro and hydroxyl functional groups on the pyridine ring makes it a valuable intermediate for nucleophilic substitution reactions, metal-catalyzed cross-couplings, and as a precursor for more complex nitrogen-containing heterocycles. Our product is rigorously tested to ensure ≥98% purity (HPLC) and is supplied as a fine yellow crystalline powder with excellent batch-to-batch consistency. Proper storage at 2-8°C…

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Description

5-Nitropyridin-2-ol (CAS No. 5418-51-9) is a high-purity nitro-substituted pyridine derivative with the molecular formula C5H4N2O3. This compound, also known by its IUPAC name 5-nitro-1H-pyridin-2-one, is a versatile heterocyclic building block widely used in pharmaceutical, agrochemical, and materials science research. The presence of both nitro and hydroxyl functional groups on the pyridine ring makes it a valuable intermediate for nucleophilic substitution reactions, metal-catalyzed cross-couplings, and as a precursor for more complex nitrogen-containing heterocycles. Our product is rigorously tested to ensure ≥98% purity (HPLC) and is supplied as a fine yellow crystalline powder with excellent batch-to-batch consistency. Proper storage at 2-8°C in a tightly sealed container is recommended to maintain stability.

Properties

  • CAS Number: 5418-51-9
  • Complexity: 236
  • IUPAC Name: 5-nitro-1H-pyridin-2-one
  • InChI: InChI=1S/C5H4N2O3/c8-5-2-1-4(3-6-5)7(9)10/h1-3H,(H,6,8)
  • InChI Key: XKWSQIMYNVLGBO-UHFFFAOYSA-N
  • Exact Mass: 140.02219199
  • Molecular Formula: C5H4N2O3
  • Molecular Weight: 140.10
  • SMILES: C1=CC(=O)NC=C1[N+](=O)[O-]
  • Topological: 74.9
  • Monoisotopic Mass: 140.02219199
  • Synonyms: 2-Hydroxy-5-nitropyridine, 5418-51-9, 5-Nitropyridin-2-ol, 2(1H)-Pyridinone, 5-nitro-, 5-Nitro-2(1H)-pyridinone, 5-Nitro-2-pyridone, H3L3D7HP42, NSC-9454, 2-Pyridinol, 5-nitro-, EINECS 226-525-7, NSC-10478, 5-Nitro-2(1H)-pyridone, AI3-19235, DTXSID00202527, NSC 9454, NSC 10478, DTXCID30125018, 226-525-7, inchi=1/c5h4n2o3/c8-5-2-1-4(3-6-5)7(9)10/h1-3h,(h,6,8, xkwsqimynvlgbo-uhfffaoysa-n, 5-Nitro-2-pyridinol, 5-nitro-1H-pyridin-2-one, 5-Nitro-2-hydroxypyridine, 5-nitropyridin-2(1H)-one, MFCD00006276, 5-Nitro-2-pyridinone, 5-(nitro)pyridin-2-ol, 2-Hydroxy-5-nitro pyridine, NSC9454, 5-Nitro-2-pyridol, 5-nitro-pyridin-2-ol, 2-hydroxy-5-nitro-pyridine, 5-nitro-2-hydroxy pyridine, UNII-H3L3D7HP42, SCHEMBL202616, SCHEMBL308403, SCHEMBL4892045, SCHEMBL9100291, SCHEMBL9588153, 2-Hydroxy-5-nitropyridine, 97%, 5-nitro-1,2-dihydropyridin-2-one, NSC10478, MFCD00235024, NSC165495, SBB004167, AKOS000121355, AKOS002256894, AC-5117, CS-W016470, FH06259, NSC-165495, pyridine, 1,2-dihydro-5-nitro-2-oxo-, AS-14483, SY001572, DB-009062, H0673, NS00032994, ST50208948, EN300-16624, AB00625969-02, AC-907/25005459, AG-456/25001234, Z56347228

Application

5-Nitropyridin-2-ol serves as a key intermediate in the synthesis of pharmaceutical compounds, particularly those with antibacterial or antiviral properties. In materials science, it is utilized for developing organic semiconductors and photoactive materials due to its electron-withdrawing nitro group. The compound also finds application in agrochemical research as a precursor for novel pesticides and herbicides.

Safety and Hazards

GHS Hazard Statements

  • H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
  • H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
  • H335 (97.9%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

  • P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

  • Skin Irrit. 2 (100%)
  • Eye Irrit. 2 (100%)
  • STOT SE 3 (97.9%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.

Disclaimer

Intended Use & Restrictions

This product is sold exclusively for laboratory research, analytical testing, or non-commercial purposes.

  • Strictly prohibited: Resale, repackaging, or formulation into commercial products.
  • Not approved for human/animal use, diagnostics, or manufacturing (including pharmaceuticals, agrochemicals, or consumer goods).

Patent & Regulatory Compliance

Certain molecules may be protected by active patents or regulatory restrictions.

  • Buyers must independently verify patent status (e.g., via USPTO/EPO/CNIPA) and comply with local laws.
  • Atomfair LLC does not provide legal assurances regarding patent non-infringement or jurisdictional compliance.

Liability Release

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  • Use this product only as permitted by law.
  • Indemnify Atomfair LLC against all claims arising from misuse, patent infringement, or regulatory violations.

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