L-Malic acid

Mass

MS-NW-0232          
L-(-)-malic acid
C4H6O5              (Mass of molecular ion:    134)

   Source Temperature: 200 °C
   Sample Temperature:   0 °C
   Direct, 75 eV

      14.0       4.4
      15.0      13.2
      17.0       1.4
      18.0       3.9
      19.0      17.9
      25.0       1.8
      26.0       8.2
      27.0      24.2
      28.0       4.9
      29.0      32.4
      30.0       2.1
      31.0       3.6
      41.0       3.3
      42.0      30.9
      43.0     100.0
      44.0      23.4
      45.0      37.4
      46.0       2.9
      47.0      10.9
      53.0       3.1
      54.0       1.9
      55.0       9.5
      60.0      12.3
      69.0       2.8
      71.0      71.7
      72.0      18.7
      73.0       1.8
      88.0       3.7
      89.0      54.6
      90.0       5.8
      99.0       1.4

Assign. Shift(ppm) B 4.598 C *1 2.91 D *1 2.86 J(B,C)=5.3HZ J(B,D)=6.2HZ J(C,D)=-17.0HZ THE SOLVENT SIGNAL REMOVED.

     Hz     ppm     Int.

    417.81   4.666    322
    412.56   4.607    401
    411.56   4.596    442
    406.38   4.538    372
    261.56   2.921   1000
    256.56   2.865    657
    255.13   2.849    627