Uzarae Xysmalobii radix..........................Fig

2 Uzara extract (commercially available) (ethanolic extracts, 30 d) 

Xysmalobii radix (1) and the pharmaceutical preparation 2 show with CTA reagent the major compounds uzarin (Tl) and xysmalorin (T5) in one prominent blue to yellow-blue fluorescent zone at R, 0.1-0,15, followed by seven blue, lower-concentrated zones with uzarigenin monoglucoside (T2) at R, — 0.35 and uzarigenin (T3) at R, — 0.8. 

Treatment with SbCl, reagent reveahs mainly the blue-violet (vi.s) zone of uzmin and xysmalorin, wiih traces of the corresponding monoglucoside in the R, range of the lanatoside B test (T4). 

Dn sample 1 Strophanthi grati semen 2 Strophanthi kotnbe semen (eihanolic extracts, 20 pi) 

All k-strophanthidin glycosides (T3-T7) fluoresce yellow-brown to white-green in UV. 

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