| 摘要 |
Dyestuffs of the formula <IMAGE> wherein S, m, X, R1, R2, R3, R4 and n have the meaning indicated in the description, and their use for dyeing and printing textile materials containing hydroxyl groups and textile materials containing nitrogen, in particular textile materials of natural and regenerated cellulose, and furthermore of wool, silk and synthetic polyamide and polyurethane fibres. The resulting dyeings are distinguished by good fastness to light and wet processing.
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