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CYCLOPENTANONE OXIME

Product Name CYCLOPENTANONE OXIME

CAS1192-28-5

MFC5H9NO

MW99.13

¹³CNMR

Mass

MS-NW-7654          
cyclopentanone oxime
C5H9NO              (Mass of molecular ion:     99)

   Source Temperature: 260 °C
   Sample Temperature: 170 °C
   Reservoir, 75 eV

      15.0       1.9
      18.0       3.4
      26.0       5.5
      27.0      20.1
      28.0      16.3
      29.0      15.8
      30.0       1.6
      31.0       2.0
      37.0       1.5
      38.0       3.4
      39.0      23.6
      40.0       5.7
      41.0      36.9
      42.0       8.8
      43.0       2.7
      44.0       6.5
      45.0       1.5
      50.0       1.7
      51.0       3.0
      52.0       4.8
      53.0      10.8
      54.0      49.8
      55.0     100.0
      56.0       5.9
      57.0       4.9
      58.0       1.0
      59.0       1.8
      65.0       2.2
      66.0       3.1
      67.0      29.3
      68.0       3.8
      70.0       6.1
      71.0       2.9
      72.0       1.5
      80.0       7.6
      81.0       1.5
      82.0      40.0
      83.0       5.8
      84.0       5.2
      98.0       6.3
      99.0      52.5
     100.0       3.7

400 MHz in DMSO-d6

90 MHz in D2O

¹H NMR	399.65 MHz
C₅ H₉ N O	0.040 g : 0.5 ml DMSO-d₆
cyclopentanone oxime

    Assign.     Shift(ppm)

      A            10.18
      B             2.25
      C             2.23
      D             1.66
      E             1.64
     
     ASSIGNED BY C-H COSY.

     Hz     ppm     Int.

   4066.47  10.176   1000
    908.97   2.275    145
    907.90   2.272    128
    906.37   2.268     97
    900.88   2.255    297
    898.59   2.249    186
    897.52   2.246    180
    896.15   2.243    279
    895.39   2.241    286
    893.71   2.237    196
    892.49   2.234    201
    891.11   2.230    292
    890.05   2.228    325
    888.98   2.225    282
    885.62   2.216     85
    884.09   2.213    145
    883.03   2.210    155
    675.96   1.692     36
    672.30   1.683    149
    668.03   1.672    141
    666.50   1.668    186
    664.67   1.664    311
    663.60   1.661    332
    661.62   1.656    275
    660.71   1.654    351
    659.18   1.650    357
    657.35   1.645    234
    656.13   1.642    340
    655.06   1.640    328
    653.23   1.635    175
    647.74   1.621    141
    645.29   1.615     37
    643.77   1.611     30

¹H NMR	89.56 MHz
C₅ H₉ N O	0.038 g : 0.5 ml D₂O
cyclopentanone oxime

    Assign.     Shift(ppm)

      A             2.40
      B             1.765
     
     SOLVENT PEAK REMOVED

     Hz     ppm     Int.

    223.00   2.490    198
    220.38   2.461    340
    217.13   2.425    672
    210.06   2.346    906
    204.31   2.282    359
    185.25   2.069     28
    184.25   2.058     28
    166.19   1.856    458
    161.44   1.803    608
    158.13   1.766   1000
    154.69   1.728    548
    150.81   1.684    315

in D2O

KBr disc

nujol mull

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