十八酸乙酯

Mass

MS-NW-3781          
ethyl stearate
C20H40O2            (Mass of molecular ion:    312)

   Source Temperature: 190 °C
   Sample Temperature: 100 °C
   Direct, 75 eV

      27.0       3.4
      28.0       1.3
      29.0      12.6
      39.0       1.7
      41.0      14.8
      42.0       3.4
      43.0      22.6
      45.0       3.0
      54.0       1.2
      55.0      13.6
      56.0       3.3
      57.0      14.2
      60.0       5.1
      61.0       6.7
      67.0       2.0
      68.0       1.0
      69.0       8.4
      70.0       6.9
      71.0       6.0
      73.0       8.0
      74.0       1.0
      81.0       1.8
      83.0       5.6
      84.0       2.6
      85.0       3.2
      87.0       1.3
      88.0     100.0
      89.0      22.2
      90.0       1.2
      95.0       1.6
      97.0       4.3
      98.0       2.6
     101.0      45.5
     102.0       4.0
     111.0       2.1
     115.0       4.6
     125.0       1.1
     129.0       1.9
     130.0       1.1
     143.0       4.9
     144.0       1.5
     157.0      13.2
     158.0       1.6
     171.0       1.3
     185.0       1.2
     199.0       2.1
     213.0       3.2
     227.0       1.4
     239.0       1.4
     241.0       1.9
     255.0       1.2
     267.0       4.7
     269.0       4.5
     270.0       1.0
     283.0       1.1
     284.0       6.5
     285.0       1.3
     298.0       1.2
     312.0      24.2
     313.0       5.7

Assign. Shift(ppm) A 4.119 B 2.28 C 1.62 D 1.251 E 1.43 to 1.09 F 0.89

     Hz     ppm     Int.

    372.75   4.163     65
    365.63   4.083     69
    358.50   4.003     22
    204.81   2.287     29
    197.13   2.202     26
    119.00   1.329    114
    112.69   1.259   1000
    104.75   1.170     85
     78.81   0.880     53