K 259-2 is a phosphodiesterase inhibitor. References: Chen JW, Li X, Zhao HM. [Analysis of vitamins and inorganic elements in the water extracts of Radix Changii]. Zhong Xi Yi Jie He Xue Bao. 2004 Sep;2(5):379-81. Chinese. PubMed PMID: 15383265.

纯度：≥98%

CAS：102819-46-5