外观Appearance                                     白色粉末
红外光谱鉴别Infrared spectrometry       Conforms to Structure
纯度Purity                                             ≥99.0% (中和滴定) 
水溶解试验solubility in water                 Clear ，c = 50mg/ml, H2O

品级Grade                                                    USP级，用于细胞培养 
                                                         (cell culture tested, USP specifications)
外观Appearance                                      白色结晶或结晶粉末
红外光谱鉴别Infrared spectrometry        和对照品匹配
纯度Purity                                              98.5%-101.5%（滴定）
干燥损失Loss on drying                         <0.2 %
重金属Heavy metals (as Pb)                   <20 ppm
硫酸盐灰分Sulfated ash                         <0.1 %
水溶解试验solubility in water                   合格
氯Cl measure                                        < 100 ppm
硫酸根SO4 measure                             < 100 ppm
砷As measure                                      < 2 ppm
氨NH4 measure                                   < 200 ppm
内毒素Endotoxin Level                        ≤1 EU/mg
细胞培养测试Cell Culture Test             Pass