DL-Pyroglutamic acid

Mass

MS-NW-4591          
DL-5-oxo-2-pyrrolidinecarboxylic acid
C5H7NO3             (Mass of molecular ion:    129)

   Source Temperature: 190 °C
   Sample Temperature: 120 °C
   Direct, 75 eV

      15.0       1.0
      17.0       1.1
      18.0       4.9
      26.0       2.3
      27.0       5.4
      28.0      27.4
      29.0       3.1
      30.0       2.1
      39.0       3.1
      40.0       1.0
      41.0      26.2
      42.0       1.6
      44.0       1.1
      45.0       3.1
      54.0       2.1
      55.0       3.0
      56.0      13.2
      73.0       1.6
      83.0       1.1
      84.0     100.0
      85.0       5.2
     129.0       5.5