| 摘要 |
Basic azo dyes where R is H, Cl or Br or NO2, R1 is Me or Et, R2 is opt. substd alkyl, cycloalkyl, aralkyl, aryl, R3 is opt. substd alkyl or aralkyl, X is H, MeO, or EtO, Y is H or Cl, or Me or MeO and A- is an anion. - Dyes can be used for dyeing or printing textiles, leather or synthetic materials.
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