Synonyms6α,7α-epoxy-5α,22R-dihydroxy-1-oxo-ergosta-2,24-dien-26-oic acid, δ-lactone Close 6α,7α-epoxy-5α,22R-dihydroxy-1-oxo-ergosta-2,24-dien-26-oic acid, δ-lactone Related products Withanolide A M.F. M.W. - CAT# AR-W01029 CAS# 32911-62-9 Withanolide B M.F. M.W. 454.6 CAT# AR-W01034 CAS# 56973-41-2