Compounds of the formula IMAGE wherein each A, independently, is a IMAGE wherein R1 is hydrogen, halo, C1-4alkyl or C1-4alkoxy, R2 is hydrogen, halo, C1-4alkyl, C1-4alkoxy, -NHCONH2 or -NHCOC1-4alkyl, R3 is hydrogen or methoxy, and m is 0, 1 or 2, each B, independently, is a radical of a diazo or coupling component, and a and each b, independently, are 0 or 1, and metal complexes thereof, which compounds or complexes are in free acid or salt form, and mixtures thereof with a compound of the formula IMAGE or a metal complex thereof, wherein A and b are as defined above and D is a radical of a diazo or coupling component of the benzene or 1-naphthalene series are useful for dyeing and printing hydroxy group- or nitrogen-containing organic substrates, especially cellulose fibre-containing textiles (e.g., cotton), paper and leather. The fastness properties of the obtained dyeings and prints may be further improved by after-treating the dyed or printed substrate with a special fixing agent.
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