Shandong Medicines&Health Products Imp&Exp. Corp Certificate of Analysis Product Name : Vitamin K1 Batch No. : 20070822 Analysis Date : Aug.22, 2007 Quantity : Sample Package :5kgs/tin,10kgs/ctn. Mfg. Date :Aug.22,2007 Expiry Date : Aug.21, 2009 Item Specification Result Assay 97.0∼103.0 % 98.89% Z Isomer 21.0% Max. 16.4% Refractive Index 1.523∼1.526 1.526 Identification A. The infrared absorption spectrum of it exhibits max. only at the same wavelength as that of USP phytonadione RS. Conforms B. The ultraviolet absorption spectrum of it exhibits max. and min. at the same wavelength as that of USP phytonadione RS. and the respective absorptivities at the wavelength of max. absorptivities at about 248nm don't differ by more than 3%. Reaction It is neutral. Conforms Menadione No purple or blue color occurs after dropping it to the solution of Ammonia hydroxide and alcohol. Conforms Reference Standard : USP 28 Conclusion : Conforms Tester: Li Ying Examiner: Li Chunlei