CPC Subgroup
C09B 33/02 Disazo dyes
Full Title
Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling > Disazo dyes
7 direct subcodes
Child Classifications
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- C09B 33/04 in which the coupling component is a dihydroxy or polyhydroxy compound
- C09B 33/06 in which the coupling component is a diamine or polyamine
- C09B 33/08 in which the coupling component is a hydroxy-amino compound
- C09B 33/12 in which the coupling component is a heterocyclic compound
- C09B 33/147 in which the coupling component is a bis -(-o-hydroxy-carboxylic- acid amide)
- C09B 33/153 in which the coupling component is a bis-(aceto-acetyl amide) or a bis-(benzoyl-acetylamide)
- C09B 33/16 from other coupling components