TETRONIC ACID

Mass

MS-NW-7982          
tetrahydrofuran-2,4-dione
C4H4O3              (Mass of molecular ion:    100)

   Source Temperature: 210 °C
   Sample Temperature: 220 °C
   Direct, 75 eV

      13.0       1.5
      14.0       4.9
      15.0       2.8
      18.0       1.4
      26.0       2.6
      27.0       1.5
      28.0       3.1
      29.0       8.7
      30.0       3.0
      41.0       4.2
      42.0     100.0
      43.0      24.8
      69.0       2.3
      72.0       8.0
     100.0      35.2
     101.0       1.8

Assign. Shift(ppm) A 12.6 B 4.952 C 4.655

     Hz     ppm     Int.

   1982.56   4.961     22
   1980.42   4.956    329
   1979.36   4.953    642
   1978.07   4.950    298
   1861.19   4.658   1000
   1860.12   4.655    993