The Bioassay Laboratory was established in 1996 as a bioactive compound screening laboratory, which is a part of the Microbial Biotechnology and Biochemicals Research Unit at the National Center for Genetic Engineering and Biotechnology (BIOTEC) under the National Science and Technology Development Agency (NSTDA). Our purpose is to assess the potential use of Thailand's biological resources in medicine, as well as to provide support for the research community in Thailand. Over the past few years, we have developed a number of in vitro assays to identify compounds with biological activities, including anti-cancer, anti-HSV-1, anti-Candida albicans, anti-Mycobacterium tuberculosis, anti-malarial parasite, anti-bacteria and anti-plant pathogenic fungi assay. We strive for excellence by continually developing new assays as well as improving the accuracy and the sensitivity of the existing assays. In addition to the bioactive compound screening services, we also perform basic research in different disciplines, including the eicosanoid pathway and in vitro bioassays screening for agricultural and animal pest controls.