2018/6/22 13:25:33打印记事本记算器
二硫苏糖醇

二硫苏糖醇 [3483-12-3]

  • DL-Dithiothreitol
  • CAS:3483-12-3      
  • 分子式:C4H10O2S2
  • 分子量:154.25
  • MDL:MFCD00004877
  • EINECS:222-468-7
  • 别名:二硫代苏糖醇,1,4-二硫代苏糖醇
上一个:D-核糖
下一个:D(+)-松二糖
产品货号商品名称规格包装售价(RMB)库存量数量操作备注
H1122886二硫苏糖醇 [3483-12-3]99%1g45.00>10 C92 B89 SB02 CH
H1122888二硫苏糖醇 [3483-12-3]99%5g145.00>10 C92 B89 SB02 CH
H1122887二硫苏糖醇 [3483-12-3]99%25g600.00>10 C92 SB02 CH
H1122885二硫苏糖醇 [3483-12-3]99%100g2100.00>10 C92 SB02 CH
化学性质质量标准危险性质用途及储存
化学性质
白色针状结晶。在37℃,0.67Pa时升华。微吸潮。易溶于水、乙醇、丙酮、乙酸乙酯、氯仿和乙醚。在空气中缓慢氧化。 密度:1.04g/mL at20℃ 熔点: 42-43 °C 沸点: 125-130 °C (2 mmHg)
质量标准
  

99%:


外观Appearance                          白色粉末
红外光谱鉴定Infrared spectrometry       和对照品匹配
熔点Melting point                       40°C - 43°C
纯度Purity                              >99.0% (碘量法)
紫外吸收UV (1 M soln. in water)
   500 nm A:                            <0.035
干燥失重Loss on Drying(%)               ≤0.5
氧化DTT Oxidized DTT(%)                 ≤0.5
水溶性实验Solubility in water           5%  
透光度Transmittance                     >99 % (c=5, 660 nm, 水) 1 cm cell


品级Grade                               分子生物学级  
                                 (for molecular biology, ≥99%)
外观Appearance                          白色粉末
含量assay                               ≥99.0% (RT)
pH                                      4.0-6.5 (25 °C, 0.1 M in H2O)
熔点Melting point                       41°C - 44°C
水溶性solubility H2O:                   soluble0.1 M at 20 °C, clear, colorless
sulfate (SO42-):                        ≤50 ppm
Heavy metals(as lead)                   <5ppm  
DNase, RNase, protease,                 none detected
λ 0.1 M in H2O
UV absorption
  λ: 260 nm A:                          ≤0.400
  λ: 280 nm A:                          ≤0.100


品级Grade                               电泳级  
                                  (for electrophoresis, ≥99%)
外观Appearance                          白色粉末
含量assay                               ≥99.0% (RT)
pH                                      4.0-6.5 (25 °C, 0.1 M in H2O)
熔点Melting point                       41°C - 44°C
水溶性solubility H2O:                   50mg/ml, clear, colorless
sulfate (SO42-):                        ≤50 ppm
Heavy metals(as lead)                   <10ppm  
UV absorbance A280nm                    <0.04 (0.02M SOLUTION)
Test for use in reduced SDS-PAGE        Pass

  
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