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PCE
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DIFF Main Group
C07D 229/00

Heterocyclic compounds containing rings of less than five members having two nitrogen atoms as the only ring hetero atoms

Introduced: July 1974

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

IPC defines codes here since 1980.

Child Classifications

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  • C07D 229/02 containing three-membered rings since 1980 IPC+CPC Available in IPC and CPC