Herbal Extract Synephrine Hydrochloride Powder, CAS No.94-07-5, also names as Synephrine HCL Powder, is naturally extracted from fruit Citrus aurantium. Citrus Aurantium Extract Synephrine is water extraction, tested by HPLC. Since the fruit likes high temperature and high humidity, Herbal Extract Powder Synephrine HCL Powder 98% raw material is normally from Sichuan, jiangxi, zhejiang and other south of China. Synephrine Hydrochloride 98% is often used in weight lossing product as Dietary Supplement.