目的 培养盐酸莫西沙星的单晶，并对其进行结构表征。方法 通过溶剂挥发法制备盐酸莫西沙星单晶，并采用热重分析仪（TGA）–差示扫描量热仪（DSC）和粉末X射线衍射仪（PXRD）对其结晶形态进行了表征。结果 制备得到盐酸莫西沙星无色透明针状结晶。TGA-DSC结果显示盐酸莫西沙星单晶熔点为255℃。单晶X射线衍射结果表明该晶胞属于单斜晶系，P2₁空间群，分子式为C₄₃H₅₆Cl₂F₂N₆O₁₀，相对分子质量为925.84。结论 采用X射线单晶衍射确证了盐酸莫西沙星单晶的结构，为盐酸莫西沙星的进一步开发提供了研究基础。

Objective To cultivate single crystal of moxifloxacin hydrochloride, and to characterize the structure of moxifloxacin hydrochloride. Methods Evaporation methods was applied to grow single crystal of moxifloxacin hydrochloride. The crystal structure of moxifloxacin hydrochloride was studied by X-ray diffraction, and the structure of moxifloxacin hydrochloride was characterized by thermogravimetric analysis (TGA)-differential scanning calorimetry (DSC) and powder X-ray diffraction (PXRD). Results Moxifloxacin hydrochloride colorless acicular crystal was obtained. Referring to the TGA-DSC results, the melting temperature of moxifloxacin hydrochloride was determined to be around 255℃. Single crystal X-ray diffractometer confirmed the monoclinic lattice with space group P2₁ in moxifloxacin hydrochloride. Moreover, the chemical formula and relative molecular mass were C₄₃H₅₆Cl₂F₂N₆O₁₀ and 925.84, respectively. Conclusion The single crystal structure of moxifloxacin hydrochloride is characterized by single crystal X-ray diffractometer, which provides a basis for the further development of moxifloxacin hydrochloride.

天津市科技计划资助项目（18YFZCSY00090）