Cefazolin Impurity B which is an important impurity of Cefazolin Sodium. In this study, the structure of the sample was consistent with Cefazolin Impurity B, which conformed by UV, IR, NMR, MS, etc.%头孢唑啉杂质B是头孢唑啉钠的一个重要杂质。本文采用紫外吸收光谱(UV)、红外吸收光谱(IR)、核磁共振谱(NMR)以及质谱(MS)等波谱分析方法对待测样品进行化学结构确证,通过实验数据和图谱解析证实样品结构与头孢唑啉杂质B结构一致。
展开▼