DIFF Subgroup
C09B 29/039 the heterocyclic ring containing nitrogen and sulfur as hetero atoms
Introduced: January 1980
Full Title
Monoazo dyes prepared by diazotising and coupling > characterised by the diazo component > from diazotised amines containing a heterocyclic ring > the heterocyclic ring containing nitrogen and sulfur as hetero atoms
Of 2 combined children, 0 exist in both systems.
2 codes exist only in IPC.
IPC defines codes here since 1980.