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网站主页CAS数据库列表 15986-80-8更多图谱2-甲基-3-丙基吡嗪(15986-80-8)质谱(MS)

2-甲基-3-丙基吡嗪

产品名称 2-甲基-3-丙基吡嗪

CAS号15986-80-8

分子式C8H12N2

分子量136.19

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  • Mass

    MS-NW-7136          
    2-methyl-3-propylpyrazine
    C8H12N2             (Mass of molecular ion:    136)
    

       Source Temperature: 260 °C
       Sample Temperature: 180 °C
       Reservoir, 75 eV
    

          15.0       1.9
          18.0       1.1
          26.0       6.3
          27.0       8.4
          28.0       3.7
          29.0       3.8
          38.0       2.1
          39.0      12.6
          40.0       7.2
          41.0      10.6
          42.0      12.0
          43.0       1.3
          50.0       1.0
          51.0       2.5
          52.0       5.0
          53.0       5.7
          54.0       2.7
          65.0       1.5
          66.0       4.2
          67.0      17.6
          68.0       2.6
          79.0       1.1
          80.0       3.2
          81.0       1.5
          82.0       1.7
          93.0       6.5
          94.0       3.7
          95.0       1.0
         107.0       8.7
         108.0     100.0
         109.0       7.8
         119.0       1.1
         121.0      21.8
         122.0       2.3
         135.0       6.4
         136.0       6.3
    

90 MHz in CDCl3


  • 1H NMR 89.56 MHz
    C8 H12 N2 0.04 ml : 0.5 ml CDCl3
    2-methyl-3-propylpyrazine
    ChemicalStructure
        Assign.     Shift(ppm)
    A *1 8.31 B *1 8.28 C 2.79 D 2.573 E 1.762 F 1.024 J(A,B)=2.7HZ

         Hz     ppm     Int.
    

        746.75   8.338     89
        746.44   8.335     89
        743.75   8.305    235
        741.94   8.285    274
        739.13   8.253     89
        258.19   2.883    120
        251.06   2.804    190
        248.81   2.779     88
        243.00   2.714    177
        230.50   2.574   1000
        169.50   1.893     79
        163.31   1.824     85
        162.44   1.814     93
        161.81   1.807    103
        161.00   1.798     72
        156.06   1.743     86
        154.25   1.723    120
        149.25   1.667     37
        148.69   1.661     36
        146.88   1.641     87
         98.06   1.095    275
         95.56   1.067     30
         95.06   1.062     31
         91.06   1.017    487
         86.94   0.971     30
         83.56   0.934    167
         82.63   0.923     93
    

in CDCl3



liquid film