XenoBiotic Laboratories, Inc. (XBL) is a leading contract research laboratory in Plainsboro, NJ, specializing in providing bioanalytical and metabolism services to the pharmaceutical, biotech, and agrochemical industries. Bioanalytical services include small molecule and biologic (protein/peptide) method development/validation and sample analysis in support of discovery, non-clinical PK/TK and clinical studies. Metabolism services include non-clinical and clinical radiolabel ADME/QWBA, in vitro metabolism, CYP p450 and transporter evaluations, and protein binding studies. In addition, XBL-China, located in Nanjing, has been providing bioanalytical and metabolism services since 2009. Both facilities are AAALAC accredited. XBL now provides comprehensive IND enabling study services.