IPC Subgroup
C07D 205/12 condensed with carbocyclic rings or ring systems
Introduced: July 1974
Last revised: January 2006
Full Title
Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom > condensed with carbocyclic rings or ring systems
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ORGANIC CHEMISTRY
- Subclass:
- HETEROCYCLIC COMPOUNDS