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Pyridine
Pyridine
is a basic
heterocyclic
organic compound
with the
chemical formula
C
5
H
5
N
. It is structurally related to
benzene
, with one
methine group
(=CH-) replaced by a
nitrogen
atom. The pyridine ring occurs in many important compounds, including
azines
and the vitamins
niacin
and
pyridoxal
.
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