• Publications
  • Influence
Method for preparing 2,5-dimethoxy-4-chloroaniline by hydrogenation reduction
The invention provides a method for preparing 2,5-dimethoxy-4-chloroaniline by hydrogenation reduction, which comprises the following steps: (1) beating and dissolving a raw material ofExpand
怎样避免“无意”偷税行为
税法明确规定:偷税是指纳税人采取伪造、变造、隐匿、擅自销毁账簿、记账凭证,在账簿上多列支出或者不列、少列收入,经税务机关通知申报而拒不申报或者进行虚假的纳税申报手段,不缴或者少缴应纳的税款。从这个定义的字面上来看,运用“伪造”等词句的意思属纳税人“有意”的行为,而在几年来的稽查工作实践中发现,由于增值税改革的逐步完善,各项税收政策规定的不断更新,
一种2,5-二甲氧基-4-氯硝基苯加氢催化剂的制备方法
Expand