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2-甲基吡嗪

产品名称 2-甲基吡嗪

CAS号109-08-0

分子式C5H6N2

分子量94.11

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  • Mass

    MS-NW-1147          
    2-methylpyrazine
    C5H6N2              (Mass of molecular ion:     94)
    

       Source Temperature: 240 °C
       Sample Temperature: 170 °C
       Reservoir, 75 eV
    

          15.0       1.3
          26.0      13.7
          27.0       2.1
          28.0       4.0
          37.0       3.0
          38.0       5.3
          39.0      14.0
          40.0      14.7
          41.0       6.2
          42.0      10.5
          51.0       2.4
          52.0       4.8
          53.0      14.5
          64.0       1.2
          66.0       2.7
          67.0      46.9
          68.0       2.5
          93.0       1.7
          94.0     100.0
          95.0       6.0
    

90 MHz in CDCl3

parameter in CDCl3


  • 1H NMR 89.56 MHz
    C5 H6 N2 0.02 ml : 0.5 ml CDCl3
    2-methylpyrazine
    ChemicalStructure
        Assign.     Shift(ppm)
    A 8.50 to 8.42 B 8.38 C 2.572

         Hz     ppm     Int.
    

        758.94   8.475    374
        757.19   8.455    281
        755.63   8.438    104
        754.00   8.419     29
        751.88   8.396    139
        751.19   8.388    125
        750.06   8.375    110
        748.88   8.362     66
        230.38   2.573   1000
    


  • 1H NMR 300 MHz
    C5 H6 N2 10 mol% in CDCl3
    2-methylpyrazine
    ChemicalStructure
        Parameter     ppm  Hz
    D(A) 8.568 D(B) 8.376 D(C) 8.453 D(D) 2.566 J(A,B) -0.20 J(A,C) 1.48 J(A,D) 0.21 J(B,C) 2.56 J(B,D) 0.45 J(C,D) 0.70 COX,R.H. & BOTHNER-BY,A.A. J.PHYS.CHEM. 72, 1646 (1968)

         Hz     ppm     Int.
    

       2571.16   8.571    239
       2569.71   8.566    257
       2538.34   8.461     76
       2537.62   8.459     98
       2536.83   8.456    109
       2535.83   8.453    128
       2535.10   8.450    128
       2534.32   8.448    115
       2533.70   8.446     89
       2513.97   8.380    192
       2511.51   8.372    160
        769.85   2.566   1000
    

in CDCl3



liquid film



4880 A,200 M,liquid