Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07D
HETEROCYCLIC COMPOUNDS
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237/00
Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings
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C07D237/26
condensed with carbocyclic rings or ring systems
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C07D237/34
with nitrogen atoms directly attached to carbon atoms of the nitrogen-containing ring, e.g. hydrazine radicals
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