Yafeng Zhan

Title: Yafeng Zhan: Innovator in Pharmaceutical Refinement

Introduction

Yafeng Zhan is a notable inventor based in Shanghai, China. He has made significant contributions to the field of pharmaceuticals, particularly in the refinement of important compounds. His innovative methods have the potential to enhance the quality and efficiency of pharmaceutical production.

Latest Patents

Yafeng Zhan holds a patent for a composition of 5-fluorouracil and a refining method therefor. This patent discloses a method for refining 5-fluorouracil, which involves dissolving the compound in an organic solvent, preferably DMSO, and then heating and stirring until dissolved. The process includes naturally cooling the filtrate to precipitate crystals, followed by filtering and washing the filter cake with a polar solvent. The method results in a product purity of over 99.98% and reduces impurities to less than 0.01%. Additionally, the refining yield exceeds 70%, making it suitable for industrial production due to its simple process and low production costs.

Career Highlights

Yafeng Zhan is associated with Shanghai Xudong Haipu Pharmaceutical Co., Ltd., where he applies his expertise in pharmaceutical refinement. His work has been instrumental in advancing the production processes within the company, contributing to the development of high-purity pharmaceutical products.

Collaborations

Yafeng Zhan collaborates with talented coworkers, including Xiaolin Chen and Pengfei Gao. Their combined efforts in research and development have fostered innovation in the pharmaceutical sector.

Conclusion

Yafeng Zhan's contributions to the refinement of 5-fluorouracil exemplify his commitment to improving pharmaceutical processes. His innovative methods not only enhance product purity but also streamline production, showcasing the importance of inventors in the pharmaceutical industry.