Zhihong Sun

Title: Zhihong Sun: Innovator in Pharmaceutical Crystallization

Introduction

Zhihong Sun is a notable inventor based in Tianjin, China. He has made significant contributions to the field of pharmaceuticals, particularly in the development of novel crystalline forms of compounds. His work is characterized by a focus on enhancing the properties and applications of pharmaceutical substances.

Latest Patents

Zhihong Sun holds a patent for a "Crystal form of Cefathiamidine compound and preparation method therefor." This patent describes a novel crystalline form of the Cefathiamidine compound, which is distinguished by its X-ray powder diffraction pattern and differential scanning calorimetry thermogram. The preparation method involves dissolving the Cefathiamidine compound, with a purity of 98% or higher, in a solvent at a controlled temperature of 30 to 45 degrees Celsius. The concentration of the solution is maintained between 0.05 to 0.2 g/mL. A solventing-out agent is then added, with a volume amounting to 3 to 5 times that of the solvent. The solution is cooled to a temperature between 0 to 10 degrees Celsius at a rate of 0.2 to 1 degree Celsius per minute. After stirring for 1 to 3 hours, the solid-liquid suspension is separated to yield the novel crystalline form after drying.

Career Highlights

Zhihong Sun has worked with prominent institutions, including Tianjin University and Hainan Lingkang Pharmaceutical Co., Ltd. His experience in these organizations has allowed him to refine his expertise in pharmaceutical research and development.

Collaborations

Zhihong Sun has collaborated with notable colleagues, including Hongxun Hao and Linggang Tao. Their joint efforts have contributed to advancements in the field of pharmaceutical sciences.

Conclusion

Zhihong Sun's innovative work in the crystallization of pharmaceutical compounds exemplifies the importance of research and development in enhancing drug efficacy. His contributions continue to impact the pharmaceutical industry positively.