ANTHRAQUINONES FROM SENNA-MULTIGLANDULOSA

Emodin and four bianthraquinones: floribundone-1, torosanin-9',10'-qui none, anhydrophlegmacin and a new bianthraquinone containing a 1,4-qui none moiety, 10-dihydroxy-2-methoxy-7-methyl-1,4-anthraquinone, are re ported from Senna multiglandulosa. The compounds are identified on the basis of their colour reactions and spectroscopic data. A bianthraqui none structure containing a 1-4-quinone moiety is reported for the fir st time.