DIFF Main Group
C07D 213/00 Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
Introduced: July 1974
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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- C07D 213/02 having three double bonds between ring members or between ring members and non-ring members since 1974 IPC+CPC Available in IPC and CPC
- C07D 213/90 having more than three double bonds between ring members or between ring members and non-ring members since 1974 IPC+CPC Available in IPC and CPC