3-甲基-2-(5H)-呋喃酮

Mass

MS-IW-9123          
3-methyl-2(5H)-furanone
C5H6O2              (Mass of molecular ion:     98)

   Source Temperature: 210 °C
   Sample Temperature: 150 °C
   Reservoir, 75 eV

      15.0       1.0
      26.0       3.6
      27.0       7.6
      28.0       5.6
      29.0       5.0
      37.0       3.1
      38.0       4.7
      39.0      29.8
      40.0      14.3
      41.0     100.0
      42.0       5.4
      43.0       1.1
      49.0       1.0
      50.0       3.0
      51.0       2.3
      52.0       1.4
      53.0       5.4
      55.0       1.3
      56.0       1.0
      68.0       5.6
      69.0      87.4
      70.0       5.0
      97.0       1.3
      98.0      67.2
      99.0       5.6

Assign. Shift(ppm) A 7.256 B 4.800 C 1.933

     Hz     ppm     Int.

   2904.05   7.267     73
   2902.47   7.263    219
   2900.88   7.259    368
   2899.17   7.255    353
   2897.58   7.251    198
   2896.12   7.247     61
   1922.49   4.811    222
   1920.53   4.806    550
   1918.46   4.801    686
   1916.38   4.796    481
   1914.31   4.790    167
    775.27   1.940    587
    773.56   1.936   1000
    771.48   1.931    886
    769.29   1.925    438