A secondary metabolite of P. Fluorescens strain CHAO which is a pathogen suppressor as well as showing inhibitory effects on bacteria, fungi, and plants. Also show marked antiviral activity against both RNA virus with envelop (vesicular stomatitis virus) and a DNA Virus with envelop (herpes simplex virus type I). Furthermore, it showed antagonistic activity against both thromboxane A2 and leukotriene D4.