6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine(23747-48-0) ¹³C NMR

Product Name6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine

CAS 23747-48-0

Molecular FormulaC8H10N2

Molecular Weight134.18

InChIInChI=1S/C8H10N2/c1-6-2-3-7-8(6)10-5-4-9-7/h4-6H,2-3H2,1H3

InChIKey YZEFQPIMXZVPKP-UHFFFAOYSA-N

SmilesC12CCC(C)C1=NC=CN=2

Request For Quotation

¹HNMR

¹³CNMR

IR1

Mass

MS-IW-4190          
5-methyl-6,7-dihydro-5H-cyclopentapyrazine
C8H10N2             (Mass of molecular ion:    134)

   Source Temperature: 240 °C
   Sample Temperature: 150 °C
   Reservoir, 75 eV

      26.0       1.2
      27.0       2.0
      28.0       2.1
      39.0       4.7
      40.0       1.5
      41.0       3.4
      51.0       1.9
      52.0       4.1
      53.0       2.9
      54.0       2.7
      55.0       1.0
      64.0       1.0
      65.0       5.0
      66.0       2.4
      67.0       1.2
      77.0       2.2
      78.0      14.8
      79.0       6.0
      80.0       3.9
      92.0       9.0
      93.0       2.0
     105.0       1.3
     106.0       1.4
     107.0       2.3
     118.0       4.9
     119.0     100.0
     120.0       9.4
     131.0       2.3
     132.0       2.3
     133.0      30.9
     134.0      57.8
     135.0       5.7

400 MHz in CDCl3

¹H NMR	399.65 MHz
C₈ H₁₀ N₂	0.05 ml : 0.5 ml CDCl₃
5-methyl-6,7-dihydro-5H-cyclopentapyrazine

    Assign.     Shift(ppm)

      A             8.282
      B             8.258
      C             3.256
      D     *1      3.02
      E     *1      3.00
      F             2.456
      G             1.744
      J             1.378
     
     ASSIGNED BY CH-COSY

     Hz     ppm     Int.

   3312.74   8.290    135
   3311.89   8.287    193
   3310.91   8.285    151
   3309.94   8.283    206
   3309.08   8.280    292
   3308.23   8.278    188
   3302.00   8.263    281
   3301.03   8.260    274
   3299.07   8.255    179
   3298.10   8.253    176
   1313.96   3.288     50
   1312.99   3.286     66
   1305.91   3.268    119
   1304.93   3.266    102
   1298.95   3.251    105
   1297.85   3.248    120
   1290.89   3.231     69
   1289.92   3.228     50
   1216.06   3.043     33
   1213.26   3.036    113
   1212.40   3.034    112
   1208.62   3.025    150
   1207.89   3.023    199
   1204.10   3.013    123
   1203.37   3.012    121
   1199.46   3.002    259
   1198.85   3.000    271
   1191.16   2.981    106
   1190.19   2.979    109
   1181.64   2.957     34
    998.66   2.499     58
    994.14   2.488     55
    990.60   2.479    104
    985.96   2.468    147
    982.42   2.459     67
    981.20   2.456     68
    977.78   2.447    154
    973.14   2.435    107
    969.60   2.427     60
    964.97   2.415     54
    716.06   1.792     64
    707.28   1.770    108
    703.25   1.760     56
    699.10   1.750    106
    694.46   1.738    106
    690.06   1.727     56
    686.16   1.717    101
    677.25   1.695     50
    554.32   1.388   1000
    547.36   1.370    974

in CDCl3