1. Effective Ingredient : Total Ginkgo Flavone Glycosides:≥24% Total Terpene Lactones≥6% 2. Pharmacology function and use The product is an acridine and hygienical material.. The preparations made of the extract have obvious effect on curing cardio-Cerebral vasecular diseases and respiratory disease such as coronary disease, angina pectoris, Cardiac infarction, cerebral coronary thrombembolia. Meanwhile, it is widely used as the additive in health care products, foods, beverages and cosmetics etc. 3. specifications: Appearance: fine, light yellow brown to light brown colored powder ,a little bitter. Content:total ginkgo flavone glycosides: ≥24% Total Terpene Lactones≥6% ①quercetin C15H10O7 ②kaempferol C15H10O6 ③isorhamnetin C16H12O7 (include ginkgo lactones,ginkgo bitter lactones A,B,C)ginkgo lactonesC15H18O8 bitter lactones:A、C20H24O9 B、C20H24O10 C、C20H14O11 Loss on drying≤3% Heavy metals≤20ppm Arsenic≤2ppm Healthful Index：BY HPLC Packing:1.25KG per round board drum 2.As your choice Currency: CNY Unit Price: 22.5usd/kg Quantity: 500 Delivery: 15days after received your order