IPC Subgroup
C09B 23/02 containing an odd number of CH groups
Introduced: September 1968
Last revised: January 2006
Full Title
Methine or polymethine dyes, e.g. cyanine dyes > characterised by the methine chain > containing an odd number of CH groups
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
3 direct subcodes
Child Classifications
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- C09B 23/04 one CH group, e.g. cyanines, isocyanines, pseudocyanines
- C09B 23/06 three CH groups, e.g. carbocyanines
- C09B 23/08 more than three CH groups, e.g. polycarbocyanines