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PCE
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DIFF Subgroup
C07D 213/02

having three double bonds between ring members or between ring members and non-ring members

Introduced: July 1974

Full Title

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 > having three double bonds between ring members or between ring members and non-ring members

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 213/89 with hetero atoms directly attached to the ring nitrogen atom since 1974 IPC+CPC Available in IPC and CPC