


| Name | Specifications | Packing | Price | Delivery | 
| 3-Mercaptopropionic acid | 98% | 500g | RMB 517 | 现货 | 
| 3-Mercaptopropionic acid | 98% | 100g | RMB 176 | 现货 | 
| 3-Mercaptopropionic acid | 98% | 25g | RMB 110 | 现货 | 
| 3-Mercaptopropionic acid | 99%,用于生化分析 | 100g | RMB 319 | 现货 | 
| 3-Mercaptopropionic acid | 99%,用于生化分析 | 25g | RMB 176 | 现货 | 
| 3-Mercaptopropionic acid | 99%,用于生化分析 | 500g | RMB 1639 | 现货 | 
外观Appearance                       熔化后为无色透明至黄色液体
纯度Purity                           ≥98.0% (碘量滴定)    
相对密度Specific gravity (20/20°C)  1.2220-1.2250  
折光率Refractive index n20/D         1.4910-1.4930
铁离子(Fe)                         0.2~1.0ppm
品级Grade                               生化级  
                                     (For biochemical analysis)
外观Appearance                          熔化后为无色透明液体
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              ≥99.0% (HPLC)
纯度Purity                              ≥99.0% (GC area)
纯度Purity                              ≥99.0% (硫代硫酸钠滴定)
相对密度Specific gravity (20/20°C)     1.2220-1.2250  
折光率Refractive index n20/D            1.4910-1.4930
紫外吸收abs.                            absorption/270 nm cut-off
备注:靠OPA方法适用于氨基酸分析(High-speed RP-HPLC/FC analysis of amino acids)
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