Farnesyl pyrophosphate-d2 (Farnesyl diphosphate-d2) triammonium is a deuterium labeled Farnesyl pyrophosphate triammonium (HY-113037C). Farnesyl pyrophosphate ammonium is a metabolic intermediate in the mevalonate (MVA) pathway. It is a TRP channel (TRPM2) agonist that triggers Ca2+ influx and cell death. Farnesyl pyrophosphate ammonium is a key branch substrate for cholesterol synthesis, ubiquinone synthesis, protein farnesylation, and geranylgeranyl pyrophosphate (GGPP) synthesis. Farnesyl pyrophosphate ammonium is used in research on cerebral ischemia, neurodegenerative diseases, pancreatic cancer, inflammation, and autoimmune diseases.