Extended Data Fig. 1: Detection of saponarioside A in extracts of different soapwort organs.

The plant extracts were analyzed using HPLC-MS in negative ionization mode. a. Structure of saponarioside A with a table showing relevant calculated adducts and fragments. b. EIC displayed for m/z 1831.7649 (calculated [M-H]- of SpA) and MS/MS spectra of the highlighted peak in corresponding plant samples are shown.