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