IPC Main Group
C09B 35/00 Disazo or polyazo dyes of the type A ← D → B prepared by diazotising and coupling
Introduced: September 1968
Last revised: January 2006
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
7 direct subcodes
Child Classifications
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- C09B 35/02 Disazo dyes
- C09B 35/35 Trisazo dyes in which the tetrazo component is a diamino-azo-aryl compound
- C09B 35/36 Trisazo dyes of the type
- C09B 35/378 Trisazo dyes of the type
- C09B 35/38 Trisazo dyes ot the types
- C09B 35/5 Tetrazo dyes
- C09B 35/64 Higher polyazo dyes, e.g. of the types