| Advanced Materials Technologies Ltd,: AMT, supplies stable isotopes, deuterated solvents and high purity materials for medical and chemical research. |
| Center of Molecular Research: Representative of a Russian producer of Oxygen-18 water situated in Saint Petersburg |
| Chemgas: Chemgas supplies high purity rare gases and isotopically enriched gases. |
| CNL Scientific Resources, Inc.: A supplier of isotopes, metals, crystals and other engineered materials to manufacturers of pharmaceuticals and instruments. |
| Gamma Radiation Sources: CNEA (Argentina's nuclear energy agency) produces qualified cobalt-60 sources for irradiation plants and for medical use. |
| Gas Oils JSC: Manufactures carbon 13 labeled carbon dioxide using lasers. |
| Hartmann Analytic GmbH: Supplier of radio-labeled chemicals, products for radiation protection. Also offers labeling-services and custom synthesis. |
| Hyox18: Isotope O18 enriched water used to produce fluoro-deoxyglucose for PET. |
| Icon Services: Supplier of compounds labeled with stable isotopes. |
| International Isotope Society: The IIS provides a forum for all chemists involved in radiochemical synthesis and analysis to obtain and share information outside of their immediate area of employment and expertise. |
| International Isotopes Clearing House, Inc.: Catalog listing of radioisotopes, 14C- and 3H-labeled compounds for medical research, 33P- and 125I- available. |
| Isoflex: Stable isotopes for use in science, medicine and industry from Russian producers. |
| IsoSciences: Custom stable isotope labeling and small scale organic synthesis including the preparation of metabolites and PET precursors and standards. |
| Isotec: A member of the Sigma-Aldrich family, manufacturer of stable isotope labeled compounds. |
| Martek Biosciences: can supply isotopically enriched biochemicals |
| MDS Nordion: Radioisotope technology used to prevent, diagnose and treat disease. Products and services include nuclear medicine, radiation therapy for cancer, irradiation sterilization and food irradiation. |
| Moravek Radiochemicals: Manufacturer of tritium and carbon 14 labeled radiochemicals for AIDS and cancer research. |
| Omicron Biochemicals Inc.: Supplier of single, multiple and uniform stable isotope labeled saccharides and nucleosides (13C, 2H, 15N, 18O). |
| PerkinElmer Life and Analytical Sciences: Radiochemicals including radiolabeled ligands, P32, amino acids, macromolecules, microspheres, precursors, and radionuclides |
| PicoTrace: Equipment for trace element and isotope analysis. |
| Proftec: Supplier of pure Copper powder. |
| Radioisotopes in Medicine: Stable and unstable isotopes are covered. |
| RITVERC GmbH: A producer and worldwide supplier of radioisotope products for science, industry, and medicine. Product list includes radiation sources, labelled compounds, stable isotopes, and radiopreparations. |
| Spectra Gases: Specialty gases for high technology markets. Our core business is pure gases and gas mixtures for excimer lasers and lamps. Isotopic en-richment of gases for research. |
| STB Isotopes: Stable isotopes for science, medicine and industry, a list of some rare and unusual stable isotopes. |
| Techsnabexport: Supplier of Russian-produced radioisotopes and labeled compounds. |
| The National Stable Isotope Resource at Los Alamos: The National Stable Isotope Resource (SIR) advances biomedical applications of compounds labeled with the stable isotopes 13C, 15N, 17, 18O, 33, 34S, and 77Se. |
| U.S. DOE Isotope Production and Distribution: U.S. Department of Energy isotopes catalog. Quite an extensive list. |
| U.S. DOE Isotope Programs: Information about U.S. Department of Energy production of isotopes programs. |
| ViTrax Radiochemicals: Manufactures Tritium, Carbon-14, and Sulfur-35 radiolabeled products and offers custom radiosynthesis under cGMP. |
| Wellington Laboratories: Produces 12C and 13C halogenated reference standards of environmental concern, including chlorinated and brominated dioxins, furans, biphenyls and diphenyl ethers. Includes corporate and product details, online catalog and contacts. |
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