IPC Subgroup
C09B 44/1 containing cyclammonium groups attached to an azo group by a carbon atom of the ring system
Introduced: January 1980
Last revised: January 2006
Full Title
Azo dyes containing onium groups > containing cyclammonium groups attached to an azo group by a carbon atom of the ring system
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
5 direct subcodes
Child Classifications
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- C09B 44/12 having one nitrogen atom as the only ring hetero atom
- C09B 44/14 1,2-Diazoles or hydrogenated 1,2-diazoles
- C09B 44/16 1,3-Diazoles or hydrogenated 1,3-diazoles
- C09B 44/18 having three nitrogen atoms as the only ring hetero atoms
- C09B 44/2 Thiazoles or hydrogenated thiazoles