Sildenafil Impurity

Guangzhou Pi Pi Biotech Inc was set up in Guangzhou Privately-Run Science and Technology Park In 2009. Currently, the company and its R & D Centre are located in Suite 501 ,198 Kaiyuan Ave., Science City, Guangzhou ，China. The company is mainly engaged in the custom synthesis, separations and purifications of drug Impurities, highly pure natural compounds and APIs & intermediates, with advanced instruments such as GAS/MS, HPLC/MS, high-resolution NMR and Preparative HPLC. Since it was founded, the company has got many sci-tech project grants awarded by the province and the city. Projects including “National TCM Standardization Research Project”, “Guangdong-Hongkong-Macao Cooperation Project”, “TCM Pilot-Test Industrialization Project”, “Guangzhou City Sci-Tech Innovation Little Giant” and “Guangzhou City Corporate R & D Institute ”, etc. The company is an innovative R & D business. In 2017, the company applied for the certification of “ National New Hi-tech Enterprise”. Welcome to cooperate or invest in our projects and patents. For more information: www.pipitech.com and www.paypaytech.com (Chinese).