Mass

MS-NW-8689          
cis-9-oxabicyclo(6.1.0)nonane
C8H14O              (Mass of molecular ion:    126)

   Source Temperature: 260 °C
   Sample Temperature: 150 °C
   Reservoir, 75 eV

      15.0       1.0
      26.0       1.2
      27.0      18.3
      28.0       5.1
      29.0      21.2
      31.0       1.8
      38.0       1.0
      39.0      21.5
      40.0       3.7
      41.0      68.8
      42.0      26.6
      43.0      16.8
      44.0       4.8
      45.0       1.3
      51.0       1.6
      53.0       6.7
      54.0      34.1
      55.0     100.0
      56.0      25.9
      57.0      44.4
      58.0       7.3
      59.0       2.0
      65.0       1.7
      66.0       1.8
      67.0      53.2
      68.0       9.3
      69.0      16.9
      70.0      14.2
      71.0       9.1
      72.0      11.2
      77.0       1.6
      79.0       7.6
      80.0       5.1
      81.0       7.5
      82.0      13.8
      83.0      28.3
      84.0      13.5
      85.0       3.1
      91.0       1.0
      93.0       5.9
      95.0       2.2
      97.0      19.2
      98.0      14.8
      99.0       1.5
     111.0       6.3
     126.0       2.0

Assign. Shift(ppm) A 2.89 B *1 2.13 C *1 1.88 to 0.95

     Hz     ppm     Int.

    268.63   3.000     71
    266.25   2.973    131
    264.50   2.954    218
    256.88   2.869    267
    254.06   2.837    214
    197.50   2.206    182
    187.00   2.088    165
    157.38   1.758     58
    136.56   1.525    862
    134.06   1.497   1000
    108.13   1.208     96
     98.81   1.104     33
     97.25   1.086     34