latin name：trifolium pratense active ingredients: total isoflavones testing method：hplc specification: features: 1) botanical source: trifolium pratense l. leaves or flowers used 2) appearances: a) brownish-black to b) brownish-green fine powder part used : branches with flowers and leaves particle size: 80mesh loss on drying: ≤5.0% heavy metals: ≤20ppm arsenic: <2ppm total plate count: ≤1000cfu/g molds&yeasts: ≤100cfu/g e-coil: negative salmonella : negative pharmacology function: yihuangtong grass, a red axle plant oestrogenic kind of role that could be used for the prevention and treatment of women by intimate oestrogenic rise early syndrome ( pms ), oestrogenic reduce the menopause syndrome, prostate cancer, breast cancer, whooping cough, asthma, respiratory infections, rashes, burns, ulcers, psoriasis and other diseases. also red axle for treatment oestrogenic disease is cervical and uterine fibroids ovarian show. pharmacological role 1 、plant oestrogenic kind; 2 、the anti-cancer role; 3 、xiejing role; 4 、xiangxiezhi role; 5、the anti-xinshuaibuqi role; 6、sars disinfection.