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Fumaric acid

Product Name Fumaric acid

CAS110-17-8

MFC4H4O4

MW116.07

Mass

MS-NW-1677          
fumaric acid
C4H4O4              (Mass of molecular ion:    116)

   Source Temperature: 190 °C
   Sample Temperature: 170 °C
   Direct, 75 eV

      13.0       1.7
      14.0       2.4
      15.0       5.4
      17.0       1.4
      18.0       4.5
      24.0       1.7
      25.0       8.8
      26.0      44.3
      27.0      69.1
      28.0       5.9
      29.0       8.1
      37.0       1.3
      41.0       5.4
      42.0       7.6
      43.0       9.3
      44.0       5.0
      45.0      70.9
      46.0       6.4
      52.0       2.4
      53.0      34.5
      54.0      19.0
      55.0      15.3
      60.0       1.3
      69.0       3.9
      70.0      10.6
      71.0      19.8
      72.0      18.5
      81.0      16.6
      82.0       4.4
      88.0      27.1
      98.0     100.0
      99.0      38.7
     100.0       2.3
     116.0      32.0
     117.0       2.2

parameter in DMSO-d6

¹H NMR	300 MHz
C₄ H₄ O₄	0.046 g : 0.5 ml DMSO-d₆
fumaric acid

    Parameter     ppm  Hz

      D(A)        12.98
     
      D(B)         6.647

     Hz     ppm     Int.

   3894.02  12.980     30
   1994.07   6.647   1000

KBr disc

nujol mull

4880 A,200 M,powder

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