Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07D
HETEROCYCLIC COMPOUNDS
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241/00
Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
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C07D241/36
condensed with carbocyclic rings or ring systems
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C07D241/50
with hetero atoms directly attached to ring nitrogen atoms
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