C09B33/18 - CPC Classification

Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling Trisazo or higher polyazo dyes

• C09B33/22 » Trisazo dyes of the type A->B->K<-C 17
• C09B33/24 » Trisazo dyes of the type 19
• C09B33/26 » Tetrazo dyes of the type A->B->C->K<-D 4
• C09B33/28 » Tetrazo dyes of the type A->B->K<-C<-D 8
• C09B33/30 » Tetrazo dyes of the type 1
• C09B33/32 » Tetrazo dyes of the type 0

Recent Application in this class: