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Propylene glycol

Product Name Propylene glycol

CAS57-55-6

MFC3H8O2

MW76.09

¹³CNMR

Mass

MS-NW-5528          
1,2-propanediol
C3H8O2              (Mass of molecular ion:     76)

   Source Temperature: 260 °C
   Sample Temperature: 190 °C
   Reservoir, 75 eV

      15.0       5.7
      18.0       2.0
      19.0       6.3
      26.0       1.6
      27.0      10.8
      28.0       3.4
      29.0       8.7
      31.0      11.5
      33.0       1.6
      39.0       1.4
      41.0       1.8
      42.0       1.7
      43.0      15.4
      44.0       5.7
      45.0     100.0
      46.0       2.6
      57.0       2.3
      58.0       1.7
      61.0       5.3

90 MHz in CDCl3

in CDCl3

¹H NMR	89.56 MHz
C₃ H₈ O₂	0.04 ml : 0.5 ml CDCl₃
1,2-propanediol

    Assign.     Shift(ppm)

      A             3.92
      B             3.86
      C     *1      3.57
      D     *1      3.39
      E             1.137
     
     J(A,E)=6.4HZ. J(C,D)=-11.2HZ. J(A,C)=3.1HZ. J(A,D)=7.6HZ.

     Hz     ppm     Int.

    356.25   3.978     54
    355.88   3.974     52
    353.25   3.945     47
    352.00   3.931     30
    350.00   3.908     50
    348.63   3.893     70
    345.38   3.857   1000
    342.31   3.823     75
    340.75   3.805     32
    339.25   3.788     66
    329.50   3.680     46
    326.38   3.645     46
    318.25   3.554    147
    315.19   3.520    117
    309.88   3.461    221
    302.25   3.375    159
    298.63   3.335     76
    291.00   3.250     62
    105.00   1.173    934
     98.69   1.102    907

in CDCl3

liquid film

4880 A,200 M,liquid

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