DIFF Subgroup
C08K 5/3472 Five-membered rings
Introduced: January 1990
Full Title
Use of organic ingredients > Nitrogen-containing compounds > Heterocyclic compounds having nitrogen in the ring > having more than two nitrogen atoms in the ring > Five-membered rings
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1990.
Child Classifications
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