Radiolabeling with GLP Certification Subhead Needed Radiolabeling demands extensive training, experience, and an understanding of where on a molecule a label should be introduced to optimize stability and cost-efficiency. ABC Laboratories' staff of talented, mostly Ph.D.-level radiosynthetic chemists are known for their ability to introduce radioactive and stable isotope labels at positions optimal for supporting GLP non-clinical and preclinical studies. Non-clinical Support Radiolabled (14C and 3H) active ingredient (AI) for in-vivo (plant and animal) and in-vitro metabolism studies, as well as environmental fate and effects testing Reference standards Stable-labeled (13C, D, 15N) API/AI/metabolites for use as internal analytical standards Preclinical Support Stable-labeled API/metabolites (13C, D, 15N) Active Pharmaceutical Ingredient (API) for in-vivo and in-vitro drug metabolism and pharmacokinetic studies API suitable for toxicological studies Reference standard synthesis and qualification Stable-labeled API/Ai/metabolites for use as internal standards Impurity identification, isolation, synthesis and characterization ABC can synthesize materials for GLP laboratory studies conducted at ABC or ship to the destination of your choice. Our fully trained materials management staff will package your materials and insure they arrive safely to their destination. Few can offer ABC's combination of compounding, formulation and dose fill (solid oral and sterile IV) services, as well as CGMP expertise in supporting human mass balance/ADME studies.