[Studies on the chemical constitutents of the traditional Chinese medicine "yun qian-hu" (Peucedanum rubricaule Shan et Shch.)].

A new coumarin-glycoside and twelve known coumarins together with seven other known compounds have been isolated from the roots of Peucedanum rubricaule Shan et Shch. (Umbelliferae). The new coumarin-glycoside named rubricauloside, has been elucidated as 5,7-dimethoxy-8-[2'-hydroxy-3'-methyl, 3'-O-beta-d- apiofuranosyl(1----6)-beta-D-glucopyranosyl-butyl]-courmarin by means of spectral and chemical analysis.