It is produced by the strain of Trichoderma sp. ATF-451. It is a Melanin biosynthesis inhibitor. It can inhibit melanin formation in the silkworm larva hemolymph (IC50 is 30.1 μg/mL), and also has stronger inhibitory effect against mushroom tyrosinase (IC50 is 4.2 μg/mL), but it has no antimicrobial effect.