system in pharmaceutical manufacturing. During the production of fosphenytoin sodium, all the process-related impurities are controlled in every stage and three degradation impurities are managed in the final API as per USP monograph. Besides, five unknown and one known contaminants were detected by HPLC method. All these impurities were identified, synthesized, isolated and characterized by IR, 1D-NMR (1H
磷苯妥英钠是一种
水溶性
苯妥英前药,直接静脉注射以输送
苯妥英,可以想象比静脉注射
苯妥英更安全。它最常用于惊厥性癫痫持续状态的强化治疗。对与程序相关的污染物的检查不仅有助于改进工艺参数,还有助于创建合理的分析方法并为药品制造中的质量控制系统设定质量标准。在
磷苯妥英钠的生产过程中,所有与工艺相关的杂质在每个阶段都受到控制,并且根据 U
SP 各论在最终 A
PI 中对三种降解杂质进行管理。此外,HPLC法还检测出5种未知污染物和1种已知污染物。所有这些杂质均通过 IR、1D-NMR(1H、13C、
DEPT)和 HRMS 光谱技术进行鉴定、合成、分离和表征。首次研究了形成杂质的机理。开发了管理这些杂质的质量控制程序,以获得 ICH 级质量的大量药物。