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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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

122521-25G:
122521-5G:
122521-100G:
122521-BULK:
122521-VAR:

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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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