Withanolide B is a bioactive compound. References: Ben Bakrim W, El Bouzidi L, Nuzillard JM, Cretton S, Saraux N, Monteillier A, Christen P, Cuendet M, Bekkouche K. Bioactive metabolites from the leaves of Withania adpressa. Pharm Biol. 2018 Dec;56(1):505-510. doi: 10.1080/13880209.2018.1499781. PubMed PMID: 30451050; PubMed Central PMCID: PMC6249549.

纯度：≥98%

CAS：56973-41-2