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1,3-Cyclopentanedione

Product Name 1,3-Cyclopentanedione

CAS3859-41-4

MFC5H6O2

MW98.1

¹³CNMR

Mass

MS-NW-7251          
1,3-cyclopentanedione
C5H6O2              (Mass of molecular ion:     98)

   Source Temperature: 220 °C
   Sample Temperature: 190 °C
   Reservoir, 75 eV

      13.0       1.0
      14.0       4.6
      15.0       2.5
      18.0       1.7
      25.0       1.6
      26.0      10.6
      27.0      20.2
      28.0     100.0
      29.0       4.3
      37.0       2.9
      38.0       3.1
      39.0       6.7
      40.0       2.7
      41.0       7.0
      42.0      88.8
      43.0      10.5
      44.0       1.4
      49.0       1.3
      50.0       2.4
      51.0       2.0
      52.0       1.3
      53.0       2.4
      54.0       1.0
      55.0      16.2
      56.0      42.1
      57.0       5.8
      69.0      13.2
      70.0      10.4
      71.0       3.0
      97.0       7.4
      98.0      83.6
      99.0       5.1

parameter in DMSO-d6

¹H NMR	300 MHz
C₅ H₆ O₂	0.039 g : 0.5 ml DMSO-d₆
1,3-cyclopentanedione

    Parameter     ppm  Hz

      D(A)         5.093
     
      D(B)         2.381

     Hz     ppm     Int.

   1527.90   5.093    500
    714.31   2.381   1000

in DMSO-d6

KBr disc

nujol mull

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