Mass

MS-IW-9256          
4-(p-bromophenyl)-4-pentanolide
C11H11BrO2          (Mass of molecular ion:    254)

   Source Temperature: 130 °C
   Sample Temperature: 110 °C
   Direct, 75 eV

      27.0       4.1
      28.0      18.0
      38.0       1.2
      39.0       2.9
      43.0      30.3
      50.0       7.1
      51.0       7.1
      52.0       1.4
      53.0       1.2
      55.0       3.2
      56.0      24.9
      57.0       1.8
      57.5       1.4
      58.0       1.4
      62.0       1.0
      63.0       2.8
      64.0       4.7
      64.5       1.2
      65.0       2.0
      71.0       1.2
      74.0       2.9
      75.0       8.5
      76.0       9.1
      77.0       5.9
      78.0       1.1
      89.0       1.9
      90.0       1.9
      91.0       4.0
      99.0       7.2
     101.0       1.3
     102.0       3.8
     103.0       2.5
     104.0       4.5
     115.0       6.3
     116.0      14.3
     117.0       1.7
     120.0       1.3
     120.5       1.3
     128.0       1.7
     129.0       2.1
     130.0       1.5
     131.0       5.6
     132.0       2.7
     155.0       7.6
     157.0       7.5
     160.0       1.9
     169.0       1.2
     171.0       1.2
     175.0       1.5
     183.0      27.3
     184.0       2.3
     185.0      26.5
     186.0       2.2
     193.0       1.8
     195.0       2.3
     199.0      34.9
     200.0       3.5
     201.0      34.2
     202.0       3.1
     211.0       5.6
     212.0       1.0
     213.0       5.4
     239.0     100.0
     240.0      11.3
     241.0      97.8
     242.0      10.9
     243.0       1.0
     254.0      28.1
     255.0       3.9
     256.0      27.9
     257.0       3.7