4-(2,4-二甲基-苯基)-4-氧代丁酸(15880-03-2)质谱(MS)

Mass

MS-IW-4660          
3-(2,4-dimethylbenzoyl)propionic acid
C12H14O3            (Mass of molecular ion:    206)

   Source Temperature: 130 °C
   Sample Temperature: 100 °C
   Direct, 75 eV

      18.0       3.2
      27.0       2.2
      39.0       2.1
      51.0       2.3
      53.0       1.1
      55.0       2.6
      63.0       1.3
      65.0       1.7
      77.0       8.0
      78.0       2.5
      79.0       7.5
      82.0       1.2
      91.0       1.8
     103.0       5.0
     104.0       2.3
     105.0      23.3
     106.0       2.6
     115.0       1.7
     128.0       1.1
     129.0       1.1
     131.0       1.1
     132.0       1.8
     133.0     100.0
     134.0      10.4
     145.0       6.8
     146.0       1.4
     159.0       4.0
     160.0       3.6
     161.0       1.2
     173.0       1.5
     188.0      13.9
     189.0       2.8
     206.0      22.5
     207.0       3.2