CPC Subgroup
C09B 35/54 of the type [IMAGE cpc-sch-C09B-1020.gif]
Full Title
Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling > Tetrazo dyes > of the type [IMAGE cpc-sch-C09B-1020.gif]
C09B 35/54 Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling > Tetrazo dyes > of the type [IMAGE cpc-sch-C09B-1020.gif]