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122521

Sigma-Aldrich

3-Hydroxypyridine N-oxide

99%

Synonym(s):

3-Pyridinol N-oxide

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About This Item

Empirical Formula (Hill Notation):
C5H5NO2
CAS Number:
6602-28-4
Molecular Weight:
111.10
EC Number:
229-545-4
MDL number:
MFCD00006200
UNSPSC Code:
12352100
PubChem Substance ID:
24847494
NACRES:
NA.22

Assay

99%

mp

190-192 °C (lit.)

SMILES string

Oc1ccc[n+]([O-])c1

InChI

1S/C5H5NO2/c7-5-2-1-3-6(8)4-5/h1-4,7H

InChI key

YMEZKRMAPQIBQH-UHFFFAOYSA-N

General description

3-Hydroxypyridine N-oxide exists in ethanol in the form of free base and in acid medium in the form of conjugate acid.

Application

3-Hydroxypyridine N-oxide was used to study the substrate specificity of dimethyl sulfoxide reductase, isolated from anaerobically grown Escherichia coli.

Pictograms

Health hazardExclamation mark
GHS08,GHS07

Signal Word

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCR5324
03328PH
S45275
00901EH
S41465

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Structure and reactivity of 3-hydroxypyridine N-oxide.
Grachev VT, et al.
Chemistry of Heterocyclic Compounds, 10(1), 80-83 (1974)
J H Weiner et al.
Journal of bacteriology, 170(4), 1505-1510 (1988-04-01)
Dimethyl sulfoxide reductase, a terminal electron transfer enzyme, was purified from anaerobically grown Escherichia coli harboring a plasmid which codes for dimethyl sulfoxide reductase. The enzyme was purified to greater than 90% homogeneity from cell envelopes by a three-step purification

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