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Merck
CN

495212

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
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352100
MDL number:
Assay:
98%
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Quality Segment

assay

98%

mp

285 °C (dec.) (lit.)

functional group

nitro

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

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves



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