苹果酸

产品名称苹果酸

CAS号6915-15-7

分子式C4H6O5

分子量134.09

¹³CNMR

Mass

MS-NW-3754          
DL-malic acid
C4H6O5              (Mass of molecular ion:    134)

   Source Temperature: 220 °C
   Sample Temperature: 120 °C
   Direct, 75 eV

      14.0       3.8
      15.0      14.5
      17.0       1.3
      18.0       5.8
      19.0      21.9
      26.0       5.2
      27.0      20.7
      28.0       6.0
      29.0      21.4
      30.0       1.4
      31.0       2.8
      41.0       2.1
      42.0      24.0
      43.0      97.3
      44.0      22.9
      45.0      26.5
      46.0       2.8
      47.0      14.3
      53.0       1.6
      55.0       8.9
      60.0      15.7
      69.0       2.0
      71.0     100.0
      72.0      25.4
      73.0       2.4
      88.0       6.1
      89.0      84.5
      90.0       7.6
      99.0       1.6

90 MHz in CDCl3

¹H NMR	89.56 MHz
C₄ H₆ O₅	0.05 g : 0.5 ml D₂O
DL-malic acid

    Assign.     Shift(ppm)

      B             4.616
      C     *1      2.94
      D     *1      2.89
     
     THE SOLVENT SIGNAL REMOVED.

     Hz     ppm     Int.

    419.38   4.683    293
    414.19   4.625    370
    413.19   4.614    444
    408.00   4.556    331
    262.75   2.934   1000
    257.69   2.878    628
    256.31   2.862    587

in D2O

KBr disc

nujol mull

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苹果酸(6915-15-7)核磁图(¹HNMR) 相关产品图谱

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