It is produced by the strain of Phellinus sp. PL3. It selectively inhibits the activity of the chitin synthase I and II with IC50 (μg/mL) of 76 and 28, respectively. It has the antifungal activity on Colletotrichum lagenarium, Pyricularia oryzae, aspergillus fumigatus and Trichophyton mentagrophytes and so on (MIC is 12.5-50 μg/mL).