Piperazine hexahydrate is cheaper than piperazine which is only available from abroad.
生产“诺氟沙星”中的哌嗪化工序工艺改进余绍章,柯利明(椒江市乡镇企业技术服务站,椒江317700)(浙江九洲制药厂,椒江317700)关键词:诺氟沙星,六水哌嗪,无水哌嗪,哌嗪化1前言诺氟沙星(Norfloxacin),化学名为1-乙。
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