Pyracrenic acid is a lupane from bark of Pyracantha crenulata. References: Jiang B, Han WL, Zhang QW, Zhang XQ, Ye WC. [Chemical constituents from the aerial roots of Ficus microcarpa]. Zhong Yao Cai. 2012 Jun;35(6):904-8. Chinese. PubMed PMID: 23236824.

纯度：≥98%

CAS：80832-44-6