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CAS No 694-59-7 , 1-oxidopyridin-1-ium

  • Name: 1-oxidopyridin-1-ium
  • Synonyms: Pyridine oxide;Pyridine-N-oxide;1-oxidopyridin-1-ium; 694-59-7; PYRIDINE N-OXIDE; 1-oxide; Pyridine; 1-oxidopyridin-1-ium; Pyridine-1-oxide; EINECS 211-774-6; Pyridine 1-oxide;
  • CAS Registry Number:
  • Melting Point: 65-66 ºC
  • Flash Point: 143 ºC
  • Boiling Point: 270 ºC
  • Density: 1.03 g/cm3
  • Refractive index: 1.6118 (26 C)
  • Safety Statements: 26-24/25-37/39
  • Hazard Symbols: Xn: Harmful;Xi: Irritant;
  • HS Code: 29333999
  • Flash Point: 143 ºC
  • EINECS: 211-774-6
  • Molecular Weight: 95.0993
  • InchiKey: ILVXOBCQQYKLDS-UHFFFAOYSA-N
  • InChI: InChI=1S/C5H5NO/c7-6-4-2-1-3-5-6/h1-5H
  • Risk Statements: S24/25
  • Molecular Formula: C5H5NO
  • Molecular Structure:CAS No:694-59-7 1-oxidopyridin-1-ium

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References of 1-oxidopyridin-1-ium
Title: Pyridine 1-Oxide
CAS Registry Number: 694-59-7
Synonyms: Pyridine N-oxide
Molecular Formula: C5H5NO
Molecular Weight: 95.10
Percent Composition: C 63.15%, H 5.30%, N 14.73%, O 16.82%
Literature References: Prepd industrially by heating pyridine in glacial acetic acid at 80° with 30% hydrogen peroxide. The acid is neutralized and the oxide recovered by distillation: Katritzky et al., J. Chem. Soc. 1957, 1769. Laboratory procedure using peracetic acid: H. S. Mosher et al., Org. Synth. coll. vol. IV, 828 (1963).
Properties: Deliquescent crystals, mp 66°; bp1.0 100-105°.
Melting point: mp 66°
Boiling point: bp1.0 100-105°
 
Derivative Type: Hydrochloride
Molecular Formula: C5H5NO.HCl
Molecular Weight: 131.56
Percent Composition: C 45.65%, H 4.60%, N 10.65%, O 12.16%, Cl 26.95%
Properties: Crystals from isopropanol, mp 179.5-181°.
Melting point: mp 179.5-181°
 
Use: Synthetic intermediate.