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分子式:C12H17NO4

分子量: 239.26768

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    Mass

    MS-KW-0296          
    (R)-2-amino-3-(3,4-dimethoxyphenyl)-2-methylpropionic acid
    C12H17NO4 3/2H2O    (Mass of molecular ion:    239)
    

       Source Temperature: 200 °C
       Sample Temperature: 180 °C
       Direct, 75 eV
    

          15.0       1.6
          17.0       1.7
          18.0       8.2
          28.0       4.0
          39.0       2.8
          40.0       1.1
          41.0       2.3
          42.0      18.5
          43.0       1.8
          44.0       1.7
          51.0       2.8
          53.0       1.0
          55.0       1.2
          56.0       1.8
          57.0       1.8
          63.0       1.0
          65.0       3.6
          66.0       1.1
          77.0       3.8
          78.0       2.8
          79.0       2.3
          80.0       1.0
          88.0      24.8
          89.0       2.6
          90.0       2.9
          91.0       4.5
          92.0       1.1
          94.0       1.3
          95.0       1.0
          97.0       2.8
         103.0       1.6
         105.0       2.6
         106.0       4.0
         107.0       6.5
         108.0       3.2
         109.0       1.7
         118.0       1.1
         121.0       2.3
         122.0       1.1
         123.0       1.0
         135.0       1.9
         136.0       1.7
         137.0       8.1
         138.0       2.4
         146.0       1.0
         148.0       1.5
         151.0     100.0
         152.0      35.0
         153.0       3.5
         162.0       1.0
         178.0       2.3
         193.0       2.6
         194.0       5.8
         220.0       1.0
         239.0       1.7
    

KBr disc

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nujol mull

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