New asymmetrical 1:2 Cr complex dyestuffs (I) of 4-sulphophenyl (2-azo-4) 1-phenyl-pyrazol-5-one and a phenol (2-azo-4) 1-phenylpyrazol-5-one sulphone cpd. are of formula (I). In (I), H2-n and SO2-X are attached to ring B or position 5 of ring A; n = 1 or 2; R1 and R2 = alkyl, aryl, COOH, a carbamoyl gp. (opt. mono- or di-substd. by (cyclo)alkyl or ar(alk)yl), CN or carboxylate ester; X = NH2 (opt. mono- or di-substd. by (cyclo)alkyl or ar(alk)yl), aryloxy or alkyl; Y = NO2 or Cl; Z = H, Cl or alkyl; Z' = Cl, alkyl, alkoxy, NO2 or carbamoyl (opt. mono- or di-substd. by (cyclo)alkyl or ar(alk)yl); Z'' and Z''' = H, Cl or alkyl; Ka+ = a cation; R3 and R4 = H, NO2, Cl or alkyl.
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机译：4-硫代苯基（2-azo-4）1-苯基吡唑-5-酮和苯酚（2-azo-4）1-苯基吡唑-5-酮砜cpd的新不对称1：2 Cr络合物染料（I） 。具有式（I）。在（I）中，H2-n和SO2-X连接至环B或环A的位置5; n = 1或2; R1和R2 ＝烷基，芳基，COOH，氨基甲酰基gp。 （被（环）烷基或芳（烷基）基单或二取代），CN或羧酸酯; X ＝ NH 2（被（环）烷基或芳（烷基）基单或二取代），芳氧基或烷基; Y = NO 2或Cl; Z = H，Cl或烷基; Z'＝ Cl，烷基，烷氧基，NO 2或氨基甲酰基（被（环）烷基或芳（烷基）基单或二取代）; Z”和Z”'＝ H，Cl或烷基; Ka + =阳离子; R 3和R 4 ＝ H，NO 2，Cl或烷基。
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