Displaying 4 results of Trimethylamine Stable Isotopes Trimethylamine is a nitrogenous organic compound with a fishy odor. It is used as a feed additive for livestock and as a precursor for the synthesis of choline, a nutrient essential for human health. Stable isotopes of trimethylamine, such as carbon-13 and deuterium, are used in research and analytical applications to trace metabolic pathways and study biological processes. These isotopes are stable and non-radioactive, making them safe to use in experiments and studies.