Tjaden Biosciences provides custom synthesis services to the life science industry providing compounds labeled with radioactive isotopes including carbon-14 and tritium, and stable isotopes including carbon-13, deuterium and nitrogen-15. Tjaden Biosciences can provide carbon-14 compounds in small quantities (final APIs, millicuries) to larger quantities (advanced intermediates, >500 mCi). Tjaden Biosciences is able to independently synthesis any labeled compound starting from barium carbonate using vacuum line techniques, and to further elaborate basic building blocks into complex organic molecules using modern organic synthetic techniques. All labeled compounds are shipped with a Certificate of Analysis showing amount, specific activity, radiochemical purity, chemical purity, with mass spectrometry and NMR analyses available upon request. Tjaden Biosciences has been providing these services for 10 years with a stellar reputation on quality and meeting delivery deadlines.