Antibiotic. Antibacterial. Antifungal. Inhibits the biosynthesis of cyclic peptide quormones in Gram-positive bacteria. Lead compound for antipathogenic drugs that target the quorum-sensing-mediated virulence expression of Gram-positive bacteria.Storage and Stability:Short-term Storage: +4°CLong-term Storage: -20°CStable for at least 3 years after receipt when stored at -20°C.