having one double bond between ring members or between a ring member and a non-ring member

Introduced: July 1974

Full Title

Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings > not condensed with other rings > having one double bond between ring members or between a ring member and a non-ring member

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

IPC defines codes here since 1974.

Child Classifications

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C07D 239/08 with hetero atoms directly attached in position 2 since 1974 IPC+CPC Available in IPC and CPC