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PCE
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DIFF Subgroup
C07D 233/54

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

Introduced: July 1974

Full Title

Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings > having two 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 233/64 with substituted hydrocarbon radicals attached to ring carbon atoms, e.g. histidine since 1974 IPC+CPC Available in IPC and CPC