DIFF Subgroup
C08K 5/3442 having two nitrogen atoms in the ring
Introduced: January 1990
Full Title
Use of organic ingredients > Nitrogen-containing compounds > Heterocyclic compounds having nitrogen in the ring > having two nitrogen atoms in the ring
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
IPC defines codes here since 1990.
Child Classifications
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