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2-Picoline-N-oxide

2-Picoline-N-oxide Suppliers list
Company Name: Suzhou Highfine Biotech Co., Ltd  Gold
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2-Picoline-N-oxide manufacturers

  • 2-Picoline-N-oxide
  • 2-Picoline-N-oxide pictures
  • $100.00
  • 2026-10-21
  • CAS:931-19-1
  • Min. Order: 1KG
  • Purity: 98%
  • Supply Ability: 5MT per month
  • 2-Picoline-N-oxide
  • 2-Picoline-N-oxide pictures
  • $1.00
  • 2019-07-06
  • CAS:931-19-1
  • Min. Order: 1KG
  • Purity: 98%
  • Supply Ability: 100KG
2-Picoline-N-oxide Basic information
Product Name:2-Picoline-N-oxide
Synonyms:2-PICOLINE-N-OXIDE 95%(MIN);2-Methylpyridine-N-oxide hemihydrate(2-Picoline-N-oxide hemihydrate);Alpha-picoline N-oxide, 2-Picoline N-oxide;2-Methyl-1-oxidopyridin-1-ium;a-Picoline 1-oxide;a-Picoline N-oxide;1-Oxylato-2-methylpyridinium;2-Picoline-N-oxide,98%
CAS:931-19-1
MF:C6H7NO
MW:109.13
EINECS:213-230-3
Product Categories:Pyridines;Pyridine;bc0001
Mol File:931-19-1.mol
2-Picoline-N-oxide Structure
2-Picoline-N-oxide Chemical Properties
Melting point 41-45 °C(lit.)
Boiling point 259-261 °C
density 1.1143 (rough estimate)
refractive index 1.5444 (estimate)
Fp >230 °F
storage temp. RT, stored under nitrogen
pkapK1:1.029(+1) (25°C)
form powder to lump to clear liquid
color White or Colorless to Light yellow
Water Solubility soluble
Sensitive Hygroscopic
BRN 106916
InChIInChI=1S/C6H7NO/c1-6-4-2-3-5-7(6)8/h2-5H,1H3
InChIKeyCFZKDDTWZYUZKS-UHFFFAOYSA-N
SMILESC1(C)[N+]([O-])=CC=CC=1
CAS DataBase Reference931-19-1(CAS DataBase Reference)
NIST Chemistry ReferencePyridine, 2-methyl-, 1-oxide(931-19-1)
EPA Substance Registry System2-Methylpyridine-1-oxide (931-19-1)
Safety Information
Hazard Codes Xi,Xn,F
Risk Statements 36/37/38-20/21/22-10
Safety Statements 26-36-24/25-16
WGK Germany 3
F 3
TSCA TSCA listed
HS Code 29333990
Storage Class11 - Combustible Solids
Hazard ClassificationsEye Irrit. 2
Skin Irrit. 2
STOT SE 3
MSDS Information
ProviderLanguage
2-Picoline-N-oxide English
SigmaAldrich English
ACROS English
ALFA English
2-Picoline-N-oxide Usage And Synthesis
Chemical Propertieslight yellow to brown crystalline low melting mass
Uses2-Picoline N-oxide is used in proteomics research. Also used as pharmaceutical intermediates.
Application2-Methylpyridine 1-oxide is a useful building block for organic synthesis.
DefinitionChEBI: Picoline N-oxide is a member of methylpyridines and a member of pyridine N-oxides.
SynthesisK2CO3 (20 mmol) and urea peroxide (10 mmol) were dissolved in dry 1,4-dioxane (100 mL), which was then stirred and reacted at room temperature for 1 hour. Trifluoroacetic anhydride (10 mmol) was added dropwise to the mixture below 12 C to bring the mixture back to room temperature. To the reaction mixture was added the corresponding 2-methylpyridine (1 mmol) and the mixture was stirred at 50 C overnight. The 1,4-dioxane was removed by distillation and replaced with dichloromethane, the mixture was washed with water (50 mL) and the resulting organic layer was dried over anhydrous MgSO4, filtered to remove the desiccant and the resulting filtrate was concentrated under vacuum to remove the solvent to give the 2-methylpyridine oxide.
Purification MethodsPurify the N-oxide by fractional distillation, and it can be recrystallised from *C6H6/hexane but is hygroscopic. [Bullitt & Maynard J Am Chem Soc 76 1370 1954, Ross et al. J Am Chem Soc 78 3625 1956, IR: Wiley & SlaymAker J Am Chem Soc 79 2233 1957.] The picrate has m 125-126.5o (from EtOH) [Boekelheide & Linn J Am Chem Soc 76 1286 1954]. The phthalate has m 115-116o (from EtOH) [den Hertog et al. Recl Trav Chim Pays-Bas 70 591 1951.]. [Beilstein 20 III/IV 2689, 20/5 V 479.]
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