102131 ⎘
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 containing acid groups, e.g. -COOH, -SOH, -POH, -OSOH, -OPOH; salts thereof