PROBLEM TO BE SOLVED: To provide a new antibacterial agent, i.e., a compound having an excellent anti-bacterial activity against the wide varieties of pathogenic bacteria such as drug resistant bacteria, vegetable pathogenic bacteria, etc., or having an enzyme inhibitory activity against the enzyme which the bacteria have, by inhibiting the two component-controlling system of bacteria, a method for producing the same, a microorganism which is a producing bacterium of the compound, and a compound-containing composition, an anti-bacterial agent and an enzyme activity inhibitor by utilizing the compound.SOLUTION: This compound having a specific anthraquinone back bone is provided. The method for producing the same is provided by comprising a step of culturing the microorganism belonging to the genus Streptomyces and having a function of producing the compound and a collection step of collecting the compound from the cultured material obtained from the culturing step.
