2018/7/21 15:40:35打印记事本记算器
DL-甲硫氨酸

DL-甲硫氨酸 [59-51-8]

  • DL-Methionine
  • CAS:59-51-8      
  • 分子式:C5H11NO2S
  • 分子量:149.21
  • MDL:MFCD00063096
  • EINECS:200-432-1
  • 别名:DL-蛋氨酸
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产品货号商品名称规格包装售价(RMB)促销价(RMB)库存量数量操作备注
H1139604DL-甲硫氨酸 [59-51-8]99%100g55.00
促销价
38.00
>10 YB11 CH
H1139603DL-甲硫氨酸 [59-51-8]99%500g125.00
促销价
87.00
>10 YB11 CH
化学性质质量标准危险性质用途及储存
化学性质
溶于水、稀酸和稀碱,极微溶于95%乙醇,不溶于乙醚。溶解度: 2.9 G/100 G 水(20°C) 密度:1.340 熔点:281℃(分解)
质量标准
  

99%:

外观Appearance                          白色至米黄色粉末
红外光谱鉴别Infrared spectrometry       符喝
纯度Purity                              ≥99% (NT) (TLC)
干燥损失Loss on drying                  <0.2 %
重金属Heavy metals (as Pb)              <10 ppm
灼烧残渣Res. after ignition             <0.1 %
pH                                      5.6 ~ 6.1 (1% soln.25°C)
透光度Transmittance                     >95 % (c=10, 2 N HCl, 430 nm) 1 cm cell
Cl                                      < 200 ppm
SO4                                     < 200 ppm
NH4                                     < 200 ppm
Fe                                      < 10 ppm
其它氨基酸Other amino acids             <0.2 % (TLC)


≥98.5%, FCC:


外观Appearance                          White Crystal to Powder
红外光谱鉴别Infrared spectrometry       Conforms to Structure
纯度Purity (Titration by HCL04)         98.50 - 101.50 %    
水分Water (by Karl Fischer)             ≤0.5 %
灼烧残渣Residue on ignition (Ash)       ≤0.1 %
砷Arsenic (As)                          ≤3 ppm
镉Cadmium (Cd)                          ≤1 ppm
汞Mercury (Hg)                          ≤1 ppm
铅Lead (Pb)                             ≤10 ppm

  
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