DIFF Subgroup
C07D 239/22 with hetero atoms directly attached to ring carbon atoms
Introduced: July 1974
Full Title
Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings > not condensed with other rings > having two double bonds between ring members or between ring members and non-ring members > with hetero atoms directly attached to ring carbon atoms
No child classifications to compare. This is a leaf node in both IPC and CPC.