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2,3-Butanedione monoxime

Product Name 2,3-Butanedione monoxime

CAS57-71-6

MFC4H7NO2

MW101.1

¹³CNMR

Mass

MS-IW-1464          
biacetyl monooxime
C4H7NO2             (Mass of molecular ion:    101)

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

      14.0       2.4
      15.0      11.3
      18.0       1.3
      26.0       1.8
      27.0       2.9
      28.0       5.0
      29.0       1.3
      30.0       1.2
      31.0       3.6
      38.0       1.9
      39.0       3.4
      40.0       8.7
      41.0      15.0
      42.0      25.0
      43.0     100.0
      44.0       5.0
      45.0       1.4
      55.0       1.0
      58.0      10.3
      60.0       1.6
      84.0       1.3
      86.0       1.2
     101.0      31.4
     102.0       3.0

90 MHz in CDCl3

¹H NMR	89.56 MHz
C₄ H₇ N O₂	0.036 g : 0.5 ml CDCl₃
biacetyl monooxime

    Assign.     Shift(ppm)

      A          9.23 to 9.14
      B             2.402
      C             2.002

     Hz     ppm     Int.

    821.75   9.176     66
    215.19   2.403   1000
    212.06   2.368     26
    182.56   2.039     38
    179.38   2.003    993
    176.38   1.970     22
    176.06   1.966     23

in CDCl3

KBr disc

nujol mull

4880 A,200 M,powder

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