2,4 -二甲基戊二酸

Mass

MS-IW-1101          
2,4-dimethylglutaric acid
C7H12O4             (Mass of molecular ion:    160)

   Source Temperature: 150 °C
   Sample Temperature: 120 °C
   Direct, 75 eV

      17.0       2.2
      18.0      12.5
      27.0      10.2
      28.0      12.2
      29.0       9.1
      30.0       2.7
      31.0       3.0
      39.0       7.4
      40.0       1.4
      41.0      39.2
      42.0       5.7
      43.0      12.1
      44.0       1.3
      45.0      35.2
      46.0       1.0
      53.0       2.0
      55.0       9.9
      56.0      80.8
      57.0      10.1
      58.0       1.2
      59.0      10.1
      67.0       2.1
      68.0       1.8
      69.0     100.0
      70.0       7.1
      71.0       3.2
      72.0       1.6
      73.0      13.2
      74.0      58.5
      75.0       2.1
      87.0      15.9
      96.0       1.6
      97.0       6.0
      98.0       1.0
      99.0       4.8
     100.0       7.2
     114.0      68.2
     115.0       9.0
     142.0       7.3
     143.0       4.5

Assign. Shift(ppm) A 11.8 B *1 2.64 C *1 2.57 D 2.141 D 1.872 D 1.506 E 1.22 MIXTURE OF OPTICAL ISOMERS.

     Hz     ppm     Int.

   1064.20   2.663     55
   1057.24   2.646    106
   1050.46   2.629    111
   1043.50   2.612     72
   1036.91   2.595     60
   1034.34   2.589     30
   1031.96   2.583     59
   1029.95   2.578     62
   1027.20   2.571     65
   1025.00   2.565     65
   1022.44   2.559     66
   1020.24   2.553     66
   1018.22   2.548     32
   1015.29   2.541     55
    872.06   2.183     36
    862.35   2.158     60
    858.14   2.148     41
    852.64   2.134     31
    848.43   2.123     65
    838.54   2.099     31
    754.65   1.889     83
    747.87   1.872    135
    741.09   1.855     74
    613.61   1.536     34
    608.66   1.523     66
    603.90   1.512     37
    599.50   1.501     34
    594.74   1.489     60
    499.68   1.251     39
    492.35   1.232    865
    491.44   1.230   1000
    485.39   1.215    872
    484.48   1.213    997