... C33H40O15[Molecular Weight]: 676.65[Structural Formula]:[Specification]: 10%,20%,50%,98%[Test method]: HPLC[Product properties]: ... ground of dicotyledoneae Berberidaceae Epimedium plants, Epimedium sagittatum (Sieb. et Zucc.) Maxim., Epimedium pubescens Maxim., Epimedium wushanense TS ... Solvent extraction → Concentration → Chromatography isolation→ Crystallization→ Icariin. Icariin 10%,20%,50%,98%