Nigrescigenin is a cardenolide from Parquetina nigrescens. References: Datté JY, Ziegler A. Pharmacological investigation on nigrescigenin-a cardenolide from Parquetina nigrescens (Afzel.) Bullock: comparative studies on cardiotonic effects of Parquetina nigrescens, g-strophanthin and noradrenaline in guinea-pig isolated atria. J Pharm Pharmacol. 2001 Jun;53(6):859-66. PubMed PMID: 11428662.

纯度：≥98%

CAS：6785-70-2