2,3,5,6-四甲基苯甲酸(2604-45-7)质谱(MS)

Mass

MS-IW-8238          
2,3,5,6-tetramethylbenzoic acid
C11H14O2            (Mass of molecular ion:    178)

   Source Temperature: 140 °C
   Sample Temperature: 130 °C
   Direct, 75 eV

      18.0       1.7
      27.0       2.5
      39.0       7.1
      40.0       1.0
      41.0       5.3
      43.0       1.7
      44.0       2.9
      50.0       1.4
      51.0       5.4
      52.0       1.8
      53.0       3.5
      55.0       1.4
      57.5       1.5
      58.0       1.4
      62.0       1.0
      63.0       3.6
      64.0       3.4
      65.0       6.9
      66.0       1.9
      67.0       1.1
      72.5       1.1
      73.0       1.2
      74.0       1.4
      75.0       1.1
      77.0       9.1
      78.0       2.9
      79.0       5.1
      80.0       4.1
      81.0       1.0
      89.0       4.5
      91.0      19.2
      92.0       2.2
      93.0       2.2
     102.0       1.2
     103.0       4.1
     104.0       1.7
     105.0       8.8
     106.0       1.3
     107.0       2.0
     115.0      13.0
     116.0       5.6
     117.0      38.6
     118.0       5.9
     119.0      34.0
     120.0       3.6
     128.0       2.0
     129.0       1.8
     131.0       8.3
     132.0      30.8
     133.0      52.3
     134.0      22.4
     135.0       3.5
     145.0       3.6
     147.0       2.5
     159.0       1.8
     160.0      70.4
     161.0      17.5
     162.0       2.0
     163.0      16.4
     164.0       1.8
     176.0       1.3
     177.0       5.4
     178.0     100.0
     179.0      12.1
     180.0       1.1
     192.0       1.7