whereinR¹denotes hydrogen, halogen or alkyl andR²denotes optionally substituted alkyl, aryl or hetaryl, and their preparation. The compounds can be used in an iron assay system."/>
New indicator compounds, method of their preparation and use of those compounds in an iron assay system
The present invention is related to compounds of the general formula (I) whereinR¹denotes hydrogen, halogen or alkyl andR²denotes optionally substituted alkyl, aryl or hetaryl, and their preparation. The compounds can be used in an iron assay system.
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机译：本发明涉及通式（I）的化合物 <图像文件=“ IMGA0001.GIF” he =“ 33” id =“ ia01” imgContent =“ chem” imgFormat =“ GIF” wi =“ 62” /> 其中R¹ 表示氢，卤素或烷基， R² 表示可选取代的烷基，芳基或杂芳基， 及其准备。该化合物可用于铁测定系统。
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