Hancolupenone, Four new triterpenoids have been extracted from the petroleum ether extract of Cyananchum hancockianum (Maxim) Al. Iljinski (Asclepiadaceae). On the basis of spectral data (1HNMR, 13CNMR, 1H-1H COSY, 1H-13C COSY, longrange 1H-13C COSY, MS, X-Ray analysis) and chemical connections, they were identified as hancockinol (Ia), hancolupenol (IIa), hancolupenone (IIc), and hancolupenol octacosanate (IId). They are of new skeletons with B/C cis, C/D trans, D/E cis junctures for Ia and with A/B trans, C/D trans, D/E cis junctures for IIa, IIc and IId. References: Lou HX, Li X, Zhu TR. [Novel triterpenoids from Cynanchum hancockianum]. Yao Xue Xue Bao. 1991;26(8):584-92. Chinese. PubMed PMID: 1805520.

纯度：≥98%

CAS：132746-04-4