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495212

Sigma-Aldrich

4-Hydroxy-3-nitropyridine

98%

Synonym(s):

3-Nitro-4-pyridinol

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About This Item

Empirical Formula (Hill Notation):
C5H4N2O3
CAS Number:
Molecular Weight:
140.10
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

98%

mp

285 °C (dec.) (lit.)

SMILES string

Oc1ccncc1[N+]([O-])=O

InChI

1S/C5H4N2O3/c8-5-1-2-6-3-4(5)7(9)10/h1-3H,(H,6,8)

InChI key

YUWOLBZMQDGRFV-UHFFFAOYSA-N

General description

4-Hydroxy-3-nitropyridine can be synthesized by the nitration of 4-hydroxypyridine.

Application

4-Hydroxy-3-nitropyridine may be used in the synthesis of 4-ethoxy-3-nitropyridine by treating with phosphorus pentachloride (PCl5) followed by ethanol. It may also be used to prepare 4-chloro-3-nitropyridine by treating with PCl5-POCl3 (phosphorus oxychloride).

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

Certificates of Analysis (COA)

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Unambiguous structural assignment of monoanils of 3,4-pyridinediamine via regioselective synthesis.
Dubey PK, et al.
ARKIVOC (Gainesville, FL, United States), 13, 137-144 (2008)
Use of the Graebe-Ullmann reaction in the synthesis of 8-methyl-γ-carboline and isomeric aromatic aza-γ-carbolines.
Alekseev RS, et al.
Chemistry of Heterocyclic Compounds, 48(8), 1235-1250 (2012)

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