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NCI Drug Dictionary

  

methionine C 11 
A synthetic amino acid radiolabeled with carbon-11. Acting as a methyl donor, methionine C 11 is incorporated into macromolecules, where it serves as a positron emission tomography (PET) imaging agent for detecting tumors with high rates of protein synthesis. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus)