IPC Subgroup
C09B 1/5 Amino-hydroxy anthraquinones; Ethers or esters thereof
Introduced: September 1968
Last revised: January 2006
Full Title
Dyes with an anthracene nucleus not condensed with any other ring > Amino-hydroxy anthraquinones; Ethers or esters thereof
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 1/503 unsubstituted amino-hydroxy anthraquinone
- C09B 1/51 N-substituted amino-hydroxy anthraquinone
- C09B 1/52 sulfonated
- C09B 1/54 etherified