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 services include:1. Contract isolation of high-pure compounds from plant.We have an open isolation platform and strong purification facilities, target compounds with the amount from milligram to kilogram can be quickly and high-efficiently isolated and purified. 2. Contract synthesis of intermediates and standard compounds.We have designed a lot of template compounds and being able to greatly enrich the compounds category to complete synthesis from mg to kg, average over 8 synthesis steps are adopted.