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PCE
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DIFF Subgroup
C07D 207/04

having no double bonds between ring members or between ring members and non-ring members

Introduced: July 1974

Full Title

Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom > with only hydrogen or carbon atoms directly attached to the ring nitrogen atom > having no double bonds between ring members or between ring members and non-ring members

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

IPC defines codes here since 1974.

Child Classifications

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  • C07D 207/06 with radicals, containing only hydrogen and carbon atoms, attached to ring carbon atoms since 1974 IPC+CPC Available in IPC and CPC