MilliporeSigma
All Photos(1)

Documents

131652

Sigma-Aldrich

Pyridine N-oxide

95%

Sign Into View Organizational & Contract Pricing

Synonym(s):
Pyridine oxide
Empirical Formula (Hill Notation):
C5H5NO
CAS Number:
Molecular Weight:
95.10
Beilstein/REAXYS Number:
105257
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

95%

form

solid

bp

270 °C (lit.)

mp

62-67 °C (lit.)

SMILES string

[O-][n+]1ccccc1

InChI

1S/C5H5NO/c7-6-4-2-1-3-5-6/h1-5H

InChI key

ILVXOBCQQYKLDS-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
56413552933681350
vibrant-m

131652

Pyridine N-oxide

vibrant-m

56413

2-Pyridinol 1-oxide

vibrant-m

552933

2,2′-Dipyridyl N-oxide

vibrant-m

681350

Pyrimidine N-oxide

Quality Level

100

Quality Level

300

Quality Level

100

Quality Level

-

form

solid

form

solid

form

-

form

solid

mp

62-67 °C (lit.)

mp

147-152 °C

mp

59-63 °C (lit.)

mp

90-94 °C

bp

270 °C (lit.)

bp

-

bp

-

bp

-

General description

Pyridine N-oxide axle with [2]rotaxanes was synthesized via an anion templated threading-followed-by-stoppering strategy.

Application

Pyridine N-oxide was used to study the FTIR spectra of pyridine N-oxide in acetonitrile.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

289.4 °F - closed cup

flash_point_c

143 °C - closed cup

ppe

dust mask type N95 (US), Eyeshields, Gloves


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

G Pitsevich et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 120, 585-594 (2014-01-01)
FTIR spectra of pyridine N-oxide and trichloroacetic acid H-bonded complex in acetonitrile were studied at 20 and 50°C. The calculations of equilibrium configurations of the complex and their IR spectra in harmonic- and anharmonic approximations were carried out at the
Highly efficient gold nanoparticle catalyzed deoxygenation of amides, sulfoxides, and pyridine N-oxides.
Yusuke Mikami et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 17(6), 1768-1772 (2011-01-29)
Jan Balzarini et al.
The Journal of antimicrobial chemotherapy, 55(2), 135-138 (2005-01-15)
Pyridine N-oxide derivatives represent a new class of anti-HIV compounds, for which some members exclusively act through inhibition of HIV-1 reverse transcriptase and thus characteristically behave as non-nucleoside reverse transcriptase inhibitors. Other members act, additionally or alternatively, at a post-integrational
Xue Gong et al.
Organic letters, 13(7), 1766-1769 (2011-03-11)
A Pd(II)-catalyzed oxidative coupling between pyridine N-oxides and N-substituted indoles via 2-fold C-H bond activation was achieved with high selectivity using Ag(2)CO(3) as an oxidant.
Masahito Murai et al.
Chemical communications (Cambridge, England), 48(61), 7622-7624 (2012-06-26)
Gold(I)-catalysed tandem oxygen-transfer/cycloisomerisation reaction of 2-(2-propynyl)pyridine N-oxides provides an atom-economical route to indolizinone frameworks.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service