DIFF Subgroup
C07D 211/74 Oxygen atoms
Introduced: July 1974
Full Title
Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings > with only hydrogen or carbon atoms directly attached to the ring nitrogen atom > having one double bond between ring members or between a ring member and a non-ring member > with hetero atoms or with carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, directly attached to ring carbon atoms > Oxygen atoms
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1974.
Child Classifications
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