The present invention is concerned with the use of aniline derivatives of the general formula: ##STR1## wherein R.sup.1 is a hydrogen atom or a --(CH.sub.2).sub.n --X radical, in which n is a whole number of from 1 to 3, X is H, OH, NH.sub.2, CH.sub.3 CONH, CH.sub.3 SO.sub.2 NH, COOH, SO.sub.3 H or --ArSO.sub.3 H, Ar being an optionally substituted arylene radical, m is a whole number of from 2 to 4, R.sup.3 is a hydrogen atom, an alkyl radical containing up to 3 carbon atoms, OCH.sub.3, CH.sub.3 CONH, COOH or SO.sub.3 H and R.sup.4 is a hydrogen, chlorine or bromine atom or a carboxylic acid or sulphonic acid group, as coupling components in oxidative color formation reactions. The present invention also provides an agent for the analytical determination of oxidizing substances by oxidative color coupling which, as coupling component, contains at least one compound of general formula (I).
本发明涉及一种
苯胺衍
生物的使用,其一般式为:##STR1## 其中R.sup.1是氢原子或--(CH.sub.2).sub.n --X基团,其中n是1到3的整数,X是H、OH、NH.sub.2、CH.sub.3 CONH、CH.sub.3 SO.sub.2 NH、COOH、SO.sub.3 H或--ArSO.sub.3 H,Ar是可选取代的芳基基团,m是2到4的整数,R.sup.3是氢原子、含有最多3个碳原子的烷基基团、OCH.sub.3、CH.sub.3 CONH、COOH或SO.sub.3 H,R.sup.4是氢、
氯或
溴原子或
羧酸或
磺酸基团,在氧化色形成反应中作为偶联组分。本发明还提供了一种用于通过氧化色偶联分析测定氧化物的试剂,其偶联组分中至少包含一种一般式(I)的化合物。