Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling

Child Classifications

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• C09B 35/02 Disazo dyes
• C09B 35/35 Trisazo dyes in which the tetrazo component is a diamino-azo-aryl compound
• C09B 35/36 Trisazo dyes of the type [IMAGE cpc-sch-C09B-1016.gif]
• C09B 35/378 Trisazo dyes of the type [IMAGE cpc-sch-C09B-1017.gif]
• C09B 35/38 Trisazo dyes ot the type [IMAGE cpc-sch-C09B-1018.gif]
• C09B 35/50 Tetrazo dyes
• C09B 35/64 Higher polyazo dyes, e.g. of the types [IMAGE cpc-sch-C09B-1025.gif]