IPC Subgroup
C09B 45/38 Preparation from compounds with —OH and —COOH adjacent in the same ring or in peri position
Introduced: September 1968
Last revised: January 2006
Full Title
Complex metal compounds of azo dyes > Preparation from compounds with —OH and —COOH adjacent in the same ring or in peri position
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
4 direct subcodes
Child Classifications
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- C09B 45/4 Chromium compounds
- C09B 45/42 Copper compounds
- C09B 45/44 Cobalt compounds
- C09B 45/46 Other metal compounds