Metabolic
CIL offers the most complete listing of stable isotopically labeled metabolic substrates available, used for studying metabolic pathways in living systems safely and accurately.
Read moreUK distributor for Cambridge Isotope Laboratories
Stable isotope supplier for Mass Spec, NMR and biochemical research, Leicestershire

Browse our area specific pages for additional information and resources on stable isotope applications.
CIL offers the most complete listing of stable isotopically labeled metabolic substrates available, used for studying metabolic pathways in living systems safely and accurately.
Read moreMass spectrometry based proteomics relies on heavy stable isotopes to generate precise, accurate quantitative data by comparing labeled and unlabeled peptide pairs.
Read moreWe supply stable isotope labeled gases with a wide range of packaging and handling options, plus custom labeled gas mixtures to exact specifications.
Read moreCK Isotopes Ltd is proud to be the official distributor for Cambridge Isotope Laboratories (CIL), in the UK and Ireland. CIL are the world's leading producer of stable isotopes and stable isotope-labeled compounds. With over 400 employees and laboratories in four countries, CIL specialises in labeling biochemical and organic compounds with highly enriched, stable isotopes of carbon, hydrogen, nitrogen and oxygen.
Our chemists substitute common atoms with rare, highly valued isotopes so that the final product can be readily measured or traced using mass spectrometry or nuclear magnetic resonance. CIL's products are utilised in laboratories, medical, government and academic research centers and health care facilities worldwide.
CIL's state-of-the-art production facilities are located at the company's headquarters in Tewksbury, Massachusetts, with primary production laboratories in Andover, Massachusetts. The isotope-separation facility in Xenia, Ohio, houses the world's largest 13C and 18O isotope-separation facilities and the world's only commercial D2O enrichment columns.


Don't hesitate to contact us if you have any questions or would like to discuss your requirements.