with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms

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 > with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms

IPC and CPC are identically structured here. All 8 subcodes exist in both systems.

IPC defines codes here since 1974.

Child Classifications

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C07D 233/68 Halogen atoms since 1974 IPC+CPC Available in IPC and CPC
C07D 233/70 One oxygen atom since 1974 IPC+CPC Available in IPC and CPC
C07D 233/72 Two oxygen atoms, e.g. hydantoin since 1974 IPC+CPC Available in IPC and CPC
C07D 233/84 Sulfur atoms since 1974 IPC+CPC Available in IPC and CPC
C07D 233/86 Oxygen and sulfur atoms, e.g. thiohydantoin since 1974 IPC+CPC Available in IPC and CPC
C07D 233/88 Nitrogen atoms, e.g. allantoin since 1974 IPC+CPC Available in IPC and CPC
C07D 233/90 Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals since 1974 IPC+CPC Available in IPC and CPC
C07D 233/91 Nitro radicals since 1974 IPC+CPC Available in IPC and CPC