It is produced by the strain of Penicillum frequentans. It can inhibit adenosine and deoxyadenosine biosynthesis, and has significant inhibitory effects on human adenocarcinoma (HAD# 1), human adenocarcinoma-1, human epithelial carcinoma-3, and bronchial carcinoma-A42. It also has the activity of anti-gram-positive bacteria and negative bacteria, and can cause plant internode shortening, root growth stopping and flowering delay.