IPC Subgroup
C09B 43/08 by reduction
Introduced: September 1968
Last revised: January 2006
Full Title
Preparation of azo dyes from other azo compounds > by reduction
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
1 direct subcode
Child Classifications
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- C09B 43/1 with formation of a new azo or an azoxy bridge