Overview
Farnesyl diphosphate (FPP) is a 15-carbon isoprenoid compound central to the mevalonate pathway, a metabolic route producing sterols, dolichols, and ubiquinones. It is synthesized from isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP) via the action of prenyltransferases. FPP serves as a substrate for enzymes like squalene synthase and protein farnesyltransferases, linking it to cholesterol biosynthesis and cell signaling. In industrial and research contexts, FPP is valued for its role in producing terpenoids, a diverse class of natural compounds with applications in fragrances, flavors, and pharmaceuticals. Its labile nature necessitates careful handling, often requiring stabilization in buffer solutions or lyophilized forms for long-term storage.
Physical and Chemical Properties
FPP is a polar, water-soluble molecule with a molecular weight of 382.33 g/mol. Its structure consists of three isoprene units linked to a diphosphate group, making it reactive in enzymatic reactions. The compound is typically supplied as a lyophilized powder or in aqueous solutions, with stability highly dependent on pH and temperature. Key chemical properties include susceptibility to hydrolysis, especially under acidic or alkaline conditions, which breaks the diphosphate bond. This instability mandates storage at -20°C or lower, often with desiccants to prevent moisture absorption. Analytical methods like HPLC and NMR are commonly used to verify purity and quantify FPP in research samples.
Main Applications
FPP’s primary use lies in biochemical research, particularly in studying enzyme kinetics of prenyltransferases and synthases involved in terpenoid production. It is indispensable for in vitro reconstitution of pathways like steroid biosynthesis, aiding drug discovery for cholesterol-related disorders. Industrially, FPP is a precursor for synthesizing artemisinin (an antimalarial compound) and other high-value terpenes via engineered microbial systems. Biotechnology firms employ FPP in metabolic engineering to optimize yields of fragrances, vitamins (e.g., vitamin K2), and biofuels. Its role in protein prenylation also makes it relevant to cancer research, targeting Ras oncogene signaling pathways.
Safety and Storage
As a biochemical reagent, FPP requires standard laboratory precautions. Use personal protective equipment (PPE) such as nitrile gloves and safety goggles to prevent skin or eye contact. Although not classified as highly toxic, prolonged exposure may cause irritation. Storage at -20°C in airtight containers is critical to prevent degradation. Lyophilized powders should be reconstituted in neutral buffers (e.g., Tris-HCl) immediately before use. Avoid freeze-thaw cycles for liquid formulations, and discard unused portions to maintain activity. Suppliers often provide material safety data sheets (MSDS) with lot-specific stability data.
B2B Procurement Guide
When sourcing FPP, prioritize suppliers specializing in fine chemicals or biochemical intermediates. Key procurement criteria include purity (≥95%, verified by HPLC), batch consistency, and documentation (e.g., Certificate of Analysis). Custom synthesis options may be available for large-scale buyers requiring tailored formulations. Prices vary significantly based on quantity and purity, with bulk purchases (grams to kilograms) often discounted. Consider logistics: cold chain shipping is essential for liquid formulations, while lyophilized products may tolerate ambient transit if packed with dry ice. Establish supplier audits for GMP compliance if FPP is intended for pharmaceutical applications.
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