Stilben serisinden disazo boyarmaddeler.

摘要

The disazo dyestuffs and mixtures thereof, of the general formula I wherein the symbols R1, R2, R3, R4, R5 and M possess the significances given in claim 1, are eminently suitable for dyeing, pad-dyeing or printing organic substrates containing hydroxyl, thiole or amido groups, especially cotton or paper.