DIFF Subgroup
C09B 29/42 containing a six-membered ring with one nitrogen atom as the only ring hetero atom
Introduced: January 1980
Full Title
Monoazo dyes prepared by diazotising and coupling > from other coupling components > from heterocyclic compounds > containing a six-membered ring with one nitrogen atom as the only ring hetero atom
Of 1 combined children, 0 exist in both systems.
1 codes exist only in IPC.
IPC defines codes here since 1980.