| 摘要 |
New compounds in free or salt form, in metal-free, 1:1 or 1:2 metal complex form, of formula I, can be used for dyeing, or printing paper, textile material or leather.
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in which each n, independently, is 0 or 1, each of B1 and B2, independently, is -OH or -NH2, and each D, independently, is a radical of formula II
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in which each v, independently, is 0, 1 or 2; and M, R, R1, R2 and R2a are each independently H or specified substitutes; with the provisos that
1) when the compound of formula I is free from sulpho groups, it contains at least one water solubilising protonatable basic or cationic group, and
2) when the compound of formula I contains at least one sulpho group the total number of water- solubilising protonatable basic and cationic groups exceeds of at least one unit the number of sulpho groups present in the molecule.
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