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IPC Subgroup
C09B 33/22

Trisazo dyes of the type A → B → K ← C

Introduced: January 1980

Last revised: January 2006

Full Title

Disazo or polyazo dyes of the types A → K ← B, A → B → K ← C, or the like, prepared by diazotising and coupling > Trisazo or higher polyazo dyes > Trisazo dyes of the type A → B → K ← C

Classification Context

Section:
CHEMISTRY; METALLURGY
Class:
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
Subclass:
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; MORDANTS; LAKES