DIFF Subgroup
C07D 241/50 with hetero atoms directly attached to ring nitrogen atoms
Introduced: July 1974
Full Title
Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings > condensed with carbocyclic rings or ring systems > with hetero atoms directly attached to ring nitrogen atoms
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
IPC defines codes here since 1974.
Child Classifications
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