Disazo dyes which are suitable for dyeing and printing, especially of paper of all kinds. The dyes correspond to the formula ##STR1## wherein R. sup.1, R.sup.2 and R.sup.3 are each an alkyl radical, A is an alkylene radical, n is 1 or 2, V, X, Y and Z are nonionic substituents customarily in azo dyes, K is a pyrimidine coupling and An is an anion.
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