cholines (11)C-choline (11)C-Choline 103.17150 104.108 A choline in which one of the methyl carbons is replaced by a C-11 isotope. An intravenous radioactive diagnostic agent used (in the form of its chloride salt) as a tracer during positron emission tomography scans to help detect sites of recurrent prostate cancer. C5H14NO CAS:94793-58-5 CHEBI:72322 C[N+](C)([11CH3])CCO Choline C-11 Choline C11 Drug_Central:4635 InChI=1S/C5H14NO/c1-6(2,3)4-5-7/h7H,4-5H2,1-3H3/q+1/i1-1 OEYIOHPDSNJKLS-BJUDXGSMSA-N Patent:US2005232861 Patent:WO2012040151 Reaxys:7913839 [N-methyl-(11)C]choline chebi_ontology