To provide a new substance capable of being utilized for the judgment of systemic inflammatory response syndromes or infectious diseases, and to provide a method for obtaining the same.
This substance appears about 13 minute later from the elution start of a main peak, when subjected to reversed phase high performance liquid chromatography using ODS (octadecylsilylated silica gel) column under the following conditions, and has a mol. wt. of 490 measured by liquid chromatograph mass spectrometer. A method for obtaining the substance, and a method for determining the substance. The conditions of the reversed phase high performance liquid chromatography; a flow rate: 1.0 ml/min; column temperature: 40°C; eluent and elution conditions: 0 to 10 min: 60% acetonitrile aqueous solution, isocratic; 10 to 15 min: 60 to 72.5%, acetonitrile aqueous solution, linear gradient; ≥15 min: 100%, acetonitrile, isocratic.
