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CAS RN: 13161-30-3 | Product Number: H0672

2-Hydroxypyridine N-Oxide


Purity: >98.0%(T)
Synonyms:
  • 1-Hydroxy-2-pyridone
  • 2-Pyridinol N-Oxide
  • HOPO
Documents:
25G
A$166.00
≥20  ≥20 
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Product Number H0672
Purity / Analysis Method >98.0%(T)
Molecular Formula / Molecular Weight C__5H__5NO__2 = 111.1  
Physical State (20 deg.C) Solid
CAS RN 13161-30-3
Reaxys Registry Number 1422545
PubChem Substance ID 87571045
MDL Number

MFCD00006195

Specifications
Appearance Light yellow to Brown powder to crystal
Purity(Neutralization titration) min. 98.0 %
Melting point 149.0 to 152.0 °C
Solubility in hot Methanol very faint turbidity
Properties (reference)
Melting Point 151 °C
GHS
Pictogram Pictogram
Signal Word Warning
Hazard Statements H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
Precautionary Statements P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ eye protection/ face protection.
P302 + P352 : IF ON SKIN: Wash with plenty of water.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P362 + P364 : Take off contaminated clothing and wash it before reuse.
P332 + P313 : If skin irritation occurs: Get medical advice/ attention.
Related Laws: / Compliance with laws, Regulations
Transport Information:
Application
An Efficient Additive for Condensation Reactions

Experimental procedure: EDC·HCl (102 mg, 0.53 mmol) is added in one portion to 1 (200 mg, 0.35 mmol), (S)-1-phenylethylamine (64 mg, 0.53 mmol) and 2-hydroxy-pyridine N-oxide (47 mg, 0.42 mmol) dissolved in dichloromethane (2 mL). The resulting solution is stirred at rt for 60 min. More EDC·HCl (50 mg) is added and the mixture is stirred at rt for 15 min more. The solution is washed with a 10% aqueous citric acid solution, water and brine then purified by flash chromatography eluting with 0 to 10% methanol in ethyl acetate. The solvent is evaporated to dryness to afford 2 (185 mg, 98%) as a white solid.

References


PubMed Literature


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