A 20-carbon-chain fatty acid, unsaturated at positions 8, 11, and 14. It differs from arachidonic acid, 5,8,11,14-eicosatetraenoic acid, only at position 5.

Eragidomide is under investigation in clinical trial NCT04297124 (A Study to Evaluate the Metabolism and Excretion of [14C]-CC-90009 in Healthy Male Subjects).

Icosabutate is under investigation in clinical trial NCT02373176 ([14C] Icosabutate -A Phase I Absorption, Metabolism and Excretion Study).

Tipranavir C-14 is under investigation in clinical trial NCT02253797 (Pharmacokinetics of Tipranavir/Ritonavir and Its Metabolites in Healthy Male Subjects).

Urea 13C is a urea molecule radiolabelled with the non-radioactive element carbon-13. It is currently used for the Urea Breath Test (UBT) and is available as a rapid diagnostic test (marketed as Pranactin-Citric) for the detection of Helicobacter pylori infec…

Urea 14C is a urea molecule radiolabelled with a radioactive carbon-14. It is currently used for the Urea Breath Test (UBT) and is available as a rapid diagnostic test (marketed as PyTest) for the detection of Helicobacter pylori infections. H pylori is a com…