IPC Subgroup
C09B 33/18 Trisazo or higher polyazo dyes
Introduced: September 1968
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
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
6 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- C09B 33/22 Trisazo dyes of the type A → B → K ← C
- C09B 33/24 Trisazo dyes of the type
- C09B 33/26 Tetrazo dyes of the type A → B → C → K ← D
- C09B 33/28 Tetrazo dyes of the type A → B → K ← C ← D
- C09B 33/3 Tetrazo dyes of the type
- C09B 33/32 Tetrazo dyes of the type