It is an amino acid antibiotic produced by the bacterium Serratia rnarcescens Ar 130-1. The antibacterial activity measured by organic medium showed no antibacterial effect, while the antibacterial activity measured by synthetic medium showed obvious antibacterial effect on Escherichia subtilis EScherichia coli K-12, and weak inhibitory effect on Escherichia coli B, Pseudomonas fluorescens, Serratia marcescens, etc.