Mass

MS-IW-9907          
D-2-acetamido-3-(3,4-dimethoxyphenyl)-2-methylpropionic acid
C14H19NO5           (Mass of molecular ion:    281)

   Source Temperature: 170 °C
   Sample Temperature: 160 °C
   Direct, 75 eV

      18.0       3.0
      28.0       1.3
      39.0       1.1
      41.0       2.0
      42.0       1.6
      43.0       5.9
      44.0       1.1
      65.0       1.3
      77.0       1.3
      78.0       1.1
      88.0       1.3
      90.0       1.3
      91.0       2.1
     105.0       1.3
     106.0       1.8
     107.0       3.3
     108.0       1.5
     135.0       1.1
     151.0     100.0
     152.0      10.1
     178.0       1.3
     222.0       5.3
     263.0       4.7
     281.0       1.3