Gynostemma P.E. Product Specification: Gypenoside 20%, 30%, 40%, 80%, 90%, 98% HPLC Latin Name: Gynostemma pentaphyllum (Thunb.)Product Type: Light Brown to ... Method: Ethanol CAS#:15588-68-8 What is Gynostemma Powder Extract? Gynostemma pentaphyllum, also called jiaogulan is a dioecious, herbaceous ... grow in groups of five (as in G. pentaphyllum) although some species can have groups of three or ...