2,4-二甲基吡咯-3,5-二羧酸

Mass

MS2004-02247WA      
3,5-dimethyl-2,4-pyrroledicarboxylic acid
C8H9NO4             (Mass of molecular ion:    183)

   Source Temperature: 250 °C
   Sample Temperature: 115 °C
   Direct, 70 eV

      27.0       1.5
      28.0       2.0
      38.0       1.4
      39.0       9.3
      40.0       2.2
      41.0       3.3
      42.0       3.1
      43.0       2.8
      44.0      13.6
      45.0       1.7
      45.5       1.3
      46.0       1.0
      46.5       1.2
      50.0       1.1
      51.0       2.9
      52.0       2.5
      53.0       3.2
      54.0       1.4
      60.0       1.2
      60.5       1.7
      62.0       1.1
      63.0       3.4
      64.0       2.9
      65.0      14.0
      66.0      11.0
      67.0       4.3
      73.5       3.1
      74.0       1.1
      78.0       1.2
      79.0       3.3
      80.0       4.8
      81.0       3.6
      82.0       2.8
      82.5       1.3
      83.0       1.0
      90.0       1.3
      91.0       9.9
      92.0       8.6
      93.0      10.0
      94.0      16.2
      95.0       7.0
     108.0       2.4
     109.0       7.4
     110.0       1.5
     118.0       1.0
     119.0      18.7
     120.0      12.7
     121.0       6.1
     122.0       5.9
     136.0       5.4
     137.0      25.8
     138.0      13.9
     139.0      18.0
     140.0       1.5
     147.0      21.9
     148.0      19.8
     149.0       2.0
     164.0       7.6
     165.0      58.7
     166.0      11.7
     167.0       1.8
     182.0       2.0
     183.0     100.0
     184.0       9.3
     185.0       1.3
     211.0       1.6