ACS级
项目名称Item                                            ACS Grade
含量Assay                                                  ≥99.0%
熔点范围Melting point                                158.0-161.0℃
灼烧残渣Residue after ignition                    ≤0.01%
氯化物(Cl)Chloride(Cl)                                ≤0.001%
硫酸盐(SO4)Sulfate                                   ≤0.003%
重金属(以Pb计)Heavy metals(as Pb)          ≤5ppm
铁(Fe)Iron(Fe)                                           ≤2ppm
硫酸变黑物Substances darkened by sulfuric acid    Passes test

品级Grade                                           药用级，99.5-100.5% 
                                                     (Ph. Eur., BP, USP，99.5-100.5%) 
含量assay                                        99.5-100.5% (calc. to the dried substance)
残留溶剂residual solvents,               complies
重金属heavy metals (as Pb)             ≤0.001%
相关物质related subst.                     ≤0.2%  (HPLC)
灼烧残渣ign. residue                        ≤0.05% (as SO4)
干燥损失loss on drying                    ≤0.3%
熔点mp                                           158-161 °C
氯根chloride (Cl-):                            ≤50 ppm
硫酸根sulfate (SO42-):                     ≤200 ppm
溶解性能for appearance of solution     complies
鉴别实验for identity                            complies

品级Grade                                         用于植物细胞培养,≥99 % 
                                                       (for plant cell culture,≥99 %)
外观Appearance                               White to Off-White Powder
醇溶性Solubility                                Colorless，Clear，50 mg/ml, EtOH
红外光谱Infrared spectrum              Conforms to Structure
纯度Purity (HPLC)                            ≥99 %
纯度Purity (Titration by NAOH)         ≥99 %
植物细胞培养测试Plant Cell Culture Test Pass