the lipophilic characters of 8 kinds of cardenolides , evaluated from rm or log k ' values by means of thin layer chromatography ( rf ) or high performance liquid chromatography ( retention time ) , increased in the order of ouabain , digoxin , digitoxigenin , digitoxigenin-monodigitoxoside , digitoxigenin-bis-digitoxoside , digitoxin , alpha-acetyl-digitoxin , triacetyl-digitoxin .
C0012257
digitoxigenin
C0012258
digitoxin