Pyridine-N-oxide

Pyridine-N-oxide
Names
	Preferred IUPAC name 1λ5-Pyridin-1-one
	Other names Pyridine-1-oxide
Identifiers
CAS Number	694-59-7 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:29136 ;
ChemSpider	12229 ;
ECHA InfoCard	100.010.705
PubChem CID	12753;
UNII	91F12JJJ4H ;
CompTox Dashboard (EPA)	DTXSID3061007 ;
	InChI InChI=1S/C5H5NO/c7-6-4-2-1-3-5-6/h1-5H Key: ILVXOBCQQYKLDS-UHFFFAOYSA-N ; InChI=1/C5H5NO/c7-6-4-2-1-3-5-6/h1-5H Key: ILVXOBCQQYKLDS-UHFFFAOYAZ;
	SMILES c1cc[n+](cc1)[O-];
Properties
Chemical formula	C5H5NO
Molar mass	95.101 g·mol−1
Appearance	Colourless solid
Melting point	65 to 66 °C (149 to 151 °F; 338 to 339 K)
Boiling point	270 °C (518 °F; 543 K)
Solubility in water	high
Acidity (pKa)	0.8 (of conjugate acid)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Pyridine-N-oxide is the heterocyclic compound with the formula C₅H₅NO. This colourless, hygroscopic solid is the product of the oxidation of pyridine. It was originally prepared using peroxyacids as the oxidising agent. The compound is used infrequently as an oxidizing reagent in organic synthesis.^[1]

^ Kilényi, S. Nicholas; Mousseau, James J. (20 September 2015). "PyridineN-Oxide". Pyridine N-Oxide. Encyclopedia of Reagents for Organic Synthesis. John Wiley & Sons. pp. 1–6. doi:10.1002/047084289X.rp283.pub2. ISBN 9780470842898.

[eEROS-1] Kilényi, S. Nicholas; Mousseau, James J. (20 September 2015). "PyridineN-Oxide". Pyridine N-Oxide. Encyclopedia of Reagents for Organic Synthesis. John Wiley & Sons. pp. 1–6. doi:10.1002/047084289X.rp283.pub2. ISBN 9780470842898.

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