ClassID:

102156

C09B33/10 - CPC Classification

Classification description:

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 hydroxy-amino compound in which the coupling component is an amino naphthol

Recent Application in this class: