IPC Subgroup
C07D 209/56 Ring systems containing three or more rings
Introduced: July 1974
Last revised: January 2006
Full Title
Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom > Ring systems containing three or more rings
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ORGANIC CHEMISTRY
- Subclass:
- HETEROCYCLIC COMPOUNDS
3 direct subcodes
Child Classifications
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- C07D 209/58 [b]- or [c]-condensed
- C07D 209/8 [b, c]- or [b, d]-condensed
- C07D 209/96 Spiro-condensed ring systems