2-Propyltriphenylphosphonium-13C3 Bromide is an intermediate in the synthesis of Farnesyl Pyrophosphate Triammonium Salt-13C3(F102473). Farnesyl Pyrophosphate Triammonium Salt-13C3 is the labelled form of Farnesyl Pyrophosphate Triammonium Salt (F102470), which is an isoprenoid from the intracellular mevalonate pathway used for prenylation of several low molecular mass G proteins, including Ras. 2-Propyltriphenylphosphonium-13C3 Bromide is also the labelled form of 2-Propyltriphenylphosphonium Bromide (P838335).