ClassID:

102130

C09B31/11 - CPC Classification

Classification description:

Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling; Disazo dyes from a coupling component "C" containing reactive methylene groups Aceto- or benzoyl-acetylarylides

Sub-classes:
Recent Application in this class: