Ultra Pure Grade                                                         

Scientific Chemical Name: C 10 H 12 N 5 O 7 PNa 2 6H 2 O                    

Specifications: A250/A………………………………………….79-0.90

A280/A260 …………………………………………………………0.18-0.22

Em (258nm, Phosphate Buffer, pH 7.0)………………… . >11000

Heavy Metals(%) …………………………………………………<=0.002 S

olubility(5%,Water)(P/F) ………………………………………PASS

性状： 外观：应为白色或类白色结晶性粉末 .                                        

鉴别：   HPLC：应与对照品出峰情况一致, 高效薄层色谱与对照品一致.