... 98%Melting point: take this product, after drying at 130 °C, according to the determination ,melting point of 232 ~ 240 ... °C. Specific rotation: Take this product, accurately weighed, add methanol containing ... ) Myrsinaceae plant two hundred gold (Ardisia crispa) roots, stems, leaves. A.hortorum. & Ltbr> [alias] Bergenin lactone, low tea factor, low tea ...