bupleurum falcatum extract bupleurum scorzonerifolium willd saikosaponins bupleurum falcatum extract bupleurum scorzonerifolium willd saikosaponins five saikosaponins were isolated from the roots of bupleurum scorzonerifolium willd. a new saikosaponin was elucidated as the 23, 28-tetrahydroxy-oleana-ll, 13( 18)-dien-3-o- d-glucopyranosyl- ( 1 ~ 6 )- [ a-l-rhamnopyranosyl- ( 1 ~ 4 ) ] - -d-glucopyranoside on the basis of spectral analysis and named as the saikosaponin s. the other four saikosaponins were determined as the saikosaponin a, saikosaponin c, saikosaponin bi and saikosaponin b2. key words:bupleurum scorzonerifolium, triterpenoid saponin, saikosaponin more about our products, please visit us in our website: http://www.organic-herb.com if there are any further questions, please do not hesitate to contact me. we welcome your precious suggestions and any of your question. thanks for your interests in organic herb inc. sincerely yours, ms mary liu sales manager organic herb inc. phone +86 731 4060828 mobile +86 131 8709 3042 fax +86 731 4023669 email: mary@organic-herb.com website: http://www.organic-herb.com add: no.1038.shanshuirenjia3rd.kaiyuanroad, xinsha, changsha, hunan, china 410100