Chengdu Cogon Bio-tech Co., Ltd. is a professional enterprise for focusing on developing and producing novel herbal reference and herbal extracts from plant material in China. which specializing in extraction of active ingredients of Chinese natural plants. Our products including Aconitine,Aloe-emodin,Anisodamine,4-hydroxyisoleucine and so on. The company has own validated research team, examination instruments and advanced production equipment, perfect quality assurance system. ...