Kudzu Root Extract Details Product Name: Pueraria Extract, Kudzu Root Extract  Herb Source: Puerariae Radix   Part Used: Root  Active Ingredients: Isoflavone, Daidzein, Daidzin, Puerarin, Puerarin-7-xyloside, etc. Appearance: Yellow Brown Powder to White Powder  Specifications: 40%-95% Isoflavones, 50%-98% Puerarin Test Method: HPLC, UV CAS#: 3681-99-0 Puerarin Molecular Formula & Molecular Weight: C21H20O9; 416.38 Puerarin Structural Formula: What Is Pueraria/Kudzu Root Extract …