... or powderSpecification: ST-1 Rebaudioside A 80%, 95%, 97%, 99% HPLC JECFA ST-2 Rebaudioside A 60% / Steviol Glycosides 90%, 95 ... ST-3 Stevioside 85%, 90%, 95% HPLC JECFA ST-4 Steviol Glycosides 85%, 90%, 95% HPLC JECFA Structural Formula: Description:1. Stevia ... 300 times sweeter than sugar.3. Stevia has been widely used in many fields, including food, pharmaceutics, chemical industries, etc. Function ...