We are the Unique Designated professional manufacturer for nicotine by Shaanxi Province tobacco bureau of China. Our EP6.2 pure nicotine is 99% nicotine(990mg/ml nicotine, less impurity, erery item conform to the USP standard ,possess the nicotine safely production license. Our certificates are: 1.Operational HACCP Specification MI-H02 2.ISO9001:2000 3.ISO14001:2004 4.Registration Certificate For Production of Hazardous Chemicals Product’s informationProduct Name: USP32pure nicotine Part Used Tobacco Leaf Specification: 99-102% by USP Appearance: Colorless or shallow yellow oily liquid Detective Methold : EP6.0(Titration Method,HPLC) C A S 54-11-5 Formula C10H14N2 Usage:1)used in product Bilogical-pesticide2)Used in Quit-smoking product, just like e-liquid or e-juice to refill the e-cigarette;or making nicotine gum /patch, nicotine tablets and so on.