美國CIL標準品：

　　美國CIL穩定性同位素世界上第一個生產穩定性同位素(StableIsotope)標記化合物的生產商。20年來，CIL一直研究穩定性同位素與穩定性同位素標記化合物的開發、生產。主要標記性同位素有13C、12C、D、15N、18O和17O，目前已經擁有8000多種標記化合物。
　　提交穩定性同位素標記物質可以被質譜儀(MS)、氣相色譜-質譜聯用儀、液相色譜-質譜聯用儀、毛細管氣相色譜、核磁共振(NMR)等設備所探測、測量和監控。
　　CIL的產品均能應用于不同的領域，如物理、化學、生物醫學、分析、診斷研究以及環境測試。

      Cambridge Isotope Laboratories, Inc. (CIL) is the world's premier producer of stable isotope labeled compounds and the world leader in the field of isotope separations with an annual production capacity of 120 kilograms of Carbon-13 and annual production capacity of 250 kilograms of Oxygen-18. For more than 20 years, CIL has specialized in the development, production, and marketing of stable (non-radioactive) isotopes and chemical compounds labeled with stable isotopes. With an inventory of over 8000 products, CIL has the most complete product offering of stable isotope labeled compounds available.

CIL employs 130 people at its state-of-the-art 57,000 square foot Andover, Massachusetts production laboratories and its Xenia, Ohio isotope separation facility. CIL's chemists are experts in their fields, with extensive years of experience exclusively in the synthesis of stable isotope labeled compounds.