Polydatin , its CAS NO. is 27208-80-6, the synonyms are 3,4,5-Trihydroxystilbene-3-beta-monoglucoside ; Resveratrol 3-beta-mono-D-glucoside ; beta-D-Glucopyranoside, 3-hydroxy-5-(2-(4-hydroxyphenyl)ethenyl)phenyl-, (E)- .