3,3',5-TRIHYDROXY-4'-METHOXY-STILBENE 3-O-BETA-D-GLUCOSIDE;4'-METHOXY-3,3',5-STILBENETRIOL-3-GLUCOSIDE;4'-METHOXY-3,3',5-STILBENETROL;3-hydroxy-5-[2-(3-hydroxy-4-methoxyphenyl)vinyl]phenyl-beta-D-glucopyranoside;RHAPONTICIN;RHAPONTIN;RHAPONTIN FROM RHUBARB ROOT;RHAPONTIN WITH HPLC