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CPC Subgroup
C09B 33/052

the coupling component being a bis-(naphthol-amine)

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 > in which the coupling component is a dihydroxy or polyhydroxy compound > the coupling component being a bis-(naphthol-amine)