METHODS Balsalazide disodium was synthesized by reactions of condensation , reduction, diazotization , coupling and salification from 4-nitrobenzoyl chloride.

方法以硝基苯甲酰氯为起始原料,经、原、重氮化、偶、成盐等反应制得巴柳氮二钠。

According to the problems in dyes production,the role of cupric ion in coupling-cupric complexation was discussed,and the chelated forms of formazane reactive dyes were introduced.

并结生产和应用中的实际问题,偶-铜络一步完成中铜盐的作用、甲铜络物的啮形式及其性能等研究成了介绍。