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PCE
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DIFF Main Group
C07D 243/00

Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms

Introduced: July 1974

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 243/02 having the nitrogen atoms in positions 1 and 2 since 1974 IPC+CPC Available in IPC and CPC
  • C07D 243/04 having the nitrogen atoms in positions 1 and 3 since 1974 IPC+CPC Available in IPC and CPC