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Diazine
Diazine
refers to a group of
organic compounds
having the
molecular formula
C
4
H
4
N
2
. Each contains a
benzene
ring in which two of the C-H fragments have been replaced by
isolobal
nitrogen. There are three
isomers
:
pyrazine
(1,4-diazine)
pyrimidine
(1,3-diazine)
pyridazine
(1,2-diazine)
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