The Isolation of Ecdysterone from the Radix of Achyranthes obtusifolia LAM

Abstract

Ecdysterone was isolated from the root of Formosan Achyranthes obtusifolia LAM. (Japanese name "Shimainokozuchi"), with two crystalline components of m.p. 248°(decomp.) and of m.p. 230°(decomp.). This contrasts with the fact that ecdysterone and inokosterone were isolatd in approximately an equal amount from the root of Japanese A. fauriei LEV. ET VAN. (Japanese name "Hinata-inokozuchi").