DIFF Subgroup
C09B 29/033 from diazotised amines containing a heterocyclic ring
Introduced: January 1980
Full Title
Monoazo dyes prepared by diazotising and coupling > characterised by the diazo component > from diazotised amines containing a heterocyclic ring
Of 2 combined children, 0 exist in both systems.
2 codes exist only in IPC.
IPC defines codes here since 1980.