ShenZhen Phystandard Bio-Tech. Co., Ltd. is a biotechnology enterprise specialized in preparing, manufacturing and marketing on reference substances. Our strong research staff, advanced purification facilities and complete quality testing techniques bring us great achievements in the researches of natural product and chemical synthesis,. Utilizing abundant Chinese plant resources and modern advanced instruments, through high-efficient isolation and identification, we have separated and pufified a great number of active compounds from natural medicines, and further developed a series of chemical products by structure modification. We dedicate ourselves to building an international influence researching center of reference substances, and provide high-pure chemical compounds or lead compounds to manufacturers or researching organizations of medicine, food, chemical products and cosmetic from around the world. Science, high-efficiency, innovation are the basic principles we insisted always. Our Selling network across the word, more than 1000 customers, including pharmaceutical companies,research institutions, university of research institute|, government agencies, third-party testing, and all kinds of factories etc.We focus on creating the best products and services to assist our customer operating experiment and manufacturing better.