ISOFLEX is equally dedicated to serving both our customers and our suppliers. Our focus is to provide a combination of product knowledge, market expertise, logistics capability, dependable quality and reliable service in bridging the needs of both customer and supplier in a manner that promotes long-term trust.
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HIC specializes in manufacturing biochemical compounds used in the synthesis of radiopharmaceuticals for molecular imaging. Additionally, we offer HIC's O-18 and other consumables for the molecular imaging industry, including but not limited to reagent kits for the production of [18F] FDG for most synthesis modules (GE, IBA, Siemens), as well as sterile vials. IUSA maintains a large inventory of HIC’s sterile vacuum vials in San Francisco and can ship to any US location within 48 hours from receipt of order. All precursors and other biochemical compounds are imported on an individual order basis. Contact us for any medical imaging products. |
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 RITVERC JSC develops, manufactures and supplies radionuclide sources, Mössbauer sources, reference sources and solutions, to customers in more than 50 countries. RITVERC sources are used in industry, medicine, and scientific research. ISOFLEX USA is a proud distributor, through our subsidiary, ISOFLEX Radioactive LLC, of RITVERC sources: Ba-133, Cs-137, Co-57, Co-60, Eu-152, Na-22, Y-88 and Zn-65. Contact us with your requirements. |
ISOFLEX offers the largest available assortment of difficult-to-find, limited-use isotopes. With access to substantial inventories of stable isotopes worldwide, we provide expedited processing and delivery.
ISOFLEX also supplies selected radioisotopes. If you have a requirement for radioisotopes and do not see your item on our Product List, please contact us.
Prices are quoted upon request and will depend upon the particular isotope, enrichment level, purity level, form and quantity.
Prices are quoted on the basis of elemental weight unless otherwise noted. For example, 64ZnO prices relate to the metallic content only. Thus, the price quoted for 100 mg of 64ZnO would apply to 100 mg of Zinc-64 metal, not 100 mg of 64ZnO compound.
Prices are quoted on a delivered basis and, unless otherwise specified, are valid for 30 days. Duties and taxes applicable to the country of destination are the responsibility of the customer.
We will provide a firm quotation for any isotope requested. Please inquire about long-term supply agreements and volume discounts.
When providing a firm quotation based upon your request, we will also provide a tentative delivery schedule. Please advise us of any special delivery conditions, and we will strive to accommodate them.
We offer same-day shipping for products in inventory. Availability of certain products may be limited at times due to production cycles, so please be sure to advise us of your specific requirements.
Quality assurance is important in every shipment we make. Prior to shipment, all isotopes are analyzed and certified as to isotopic enrichment level and purity. Each shipment is accompanied by a Certificate of Analysis.
Products sold by ISOFLEX are guaranteed to meet the specifications described in the Certificate of Analysis, providing there is no evidence of foreign contamination introduced after shipment from our facility.
Compound weight is calculated using standard stoichiometry methods, without correction for enrichment. Quoted isotopic enrichments are guaranteed within 0.5%, unless otherwise noted.
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American Chemical Society (ACS)
ACS is a congressionally chartered independent membership organization which represents professionals at all degree levels and in all fields of chemistry and sciences that involve chemistry. |
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American Nuclear Society (ANS)
ANS is a not-for-profit, international, scientific and educational organization. Its core purpose is to promote the awareness and understanding of the application of nuclear science and technology. |
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American Society for Nondestructive Testing (ASNT)
The American Society for Nondestructive Testing, Inc. (ASNT) is the world's largest technical society for nondestructive testing (NDT) professionals, providing a forum for the exchange of technical information; educational materials and programs; and standards and services for the qualification and certification of NDT personnel. ASNT promotes the discipline of NDT as a profession and facilitates research and technology applications. |
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International Isotope Society (IIS)
IIS strives to provide a unique association for anyone interested in the synthesis and application of isotopically labeled compounds. IIS has annual international meetings and many divisional meetings throughout the year. |
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Society of Nuclear Medicine and Molecular Imaging (SNMMI)
SNMMI is a nonprofit scientific and professional organization that promotes the science, technology and practical application of nuclear medicine and molecular imaging. SNMMI strives to be a leader in unifying, advancing and optimizing molecular imaging, with the ultimate goal of improving human health. |
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Society of Radiopharmaceutical Sciences (SRS)
The Society of Radiopharmaceutical Sciences (SRS) is an international society providing academic and intellectual support for radiopharmaceutical science. At the heart of all nuclear imaging, radiopharmaceutical science is the design, synthesis and evaluation of compounds containing suitable radionuclides that can be used in vivo to trace (follow) a particular physiological or biochemical phenomenon. |
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United Pharmacy Partners LLC (UPPI)
UPPI has become a leader in traditional nuclear medicine and in the rapidly growing nuclear and PET pharmacy industries. Representing more than 80 independent and institutional operating sites across the country, UPPI provides its members national strength in buying relationships as well as access to customizable local programs that advance the professionalism of the industry. |
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World Council on Isotopes
The primary purpose of World Council on Isotopes (WCI) is to promote cooperation internationally in the sharing of the uses of safe and environmentally sound isotope technologies to serve the needs for global wellbeing. The role of WCI is to establish a network and to provide a forum for resolving outstanding issues related to the sound production, distribution and utilization of isotopes in the world. |
We have been in business for 20 years and are the premier global distributor of stable isotopes for a broad spectrum of applications:
Do you need germanium isotopes for neutrino detectors, silicon isotopes for high-energy accelerator research, or zinc isotopes for metabolic studies? ISOFLEX supplies cutting-edge researchers from Boston to Berkeley, Montreal to Mexico City, and beyond!
Whether you are at Caltech, MIT, or anywhere else in academia; whether you are working on an NIH grant or an undergraduate internship, just let us know. We understand limited research budgets.
Whatever your isotope needs, give us a call. We offer maximum flexibility in meeting your monetary constraints.
Whether it's pharmaceutical tracers or precursors for radioisotope production, ISOFLEX has you covered.
From milligram-quantity atomic clock crystals, to hundreds of grams for laser production, to hundreds of kilograms for nuclear reactor water chemistry additives, ISOFLEX meets demanding isotopic purity and enrichment requirements. We also offer isotopically-enriched gases and gaseous compounds.
ISOFLEX makes it easy. Let's discuss your custom synthesis needs. You will be surprised at our reasonable prices for custom synthesis work. Contact us today!
ISOFLEX USA is the US distributor for Huayi Isotope Company (HIC), located in the Jiangsu Province of China.
Changyou Gas Company supplies stable isotopic gases, metals and chemicals. Located in Suzhou City, Jiangsu Province, China, Changyou Gas Company is a select distributor of ISOFLEX products, including Helium-3, Xenon isotopes (Xe-129, Xe-131, Xe-134 and Xe-136), Zinc-64 depleted DZO and DZA, and many other isotopically-enriched metals, salts and oxides.