| 摘要 |
The invention is concerned with compounds according to the formula and their salts, wherein X represents hydrogen or chloro, R1 and R3 represent hydrogen or methyl, R2 and R4 represent hydrogen, methyl or methoxy, and R5 represents hydrogen or C1-4alkyl, which are useful as fiber-reactive dyestuffs in dyeing and printing hydroxy-group-containing as well as nitrogen-containing organic substrates and for the preparation of printing inks which are suitable for the ink jet process.
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