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网站主页CAS数据库列表 6236-09-5更多图谱(S)-(+)-柠苹酸(6236-09-5)红外图谱(IR1)

(S)-(+)-柠苹酸

产品名称 (S)-(+)-柠苹酸

CAS号6236-09-5

分子式C5H8O5

分子量148.11

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  • Mass

    MS-IW-1757          
    (S)-(+)-2-hydroxy-2-methylsuccinic acid
    C5H8O5              (Mass of molecular ion:    148)
    

       Source Temperature: 140 °C
       Sample Temperature: 120 °C
       Direct, 75 eV
    

          15.0       4.7
          18.0       1.4
          27.0       2.7
          28.0       2.6
          29.0       3.8
          31.0       3.1
          36.0       1.3
          38.0       1.1
          39.0       5.9
          40.0       1.6
          41.0       6.9
          42.0       9.9
          43.0     100.0
          44.0       6.1
          45.0      10.3
          47.0       1.1
          57.0       1.8
          58.0      10.5
          60.0       8.9
          61.0       9.2
          68.0       1.8
          69.0       3.5
          71.0       2.1
          85.0      66.1
          86.0       8.4
          87.0       5.3
          89.0       1.1
         103.0      76.0
         104.0       4.5
         115.0       2.2
    

400 MHz in DMSO-d6


  • 1H NMR 399.65 MHz
    C5 H8 O5 0.044 g : 0.5 ml DMSO-d6
    (S)-(+)-2-hydroxy-2-methylsuccinic acid
    ChemicalStructure
        Assign.     Shift(ppm)
    A 12. B 5. C *1 2.691 D *1 2.51 E 1.311

         Hz     ppm     Int.
    

       1084.66   2.715    175
       1069.06   2.675    245
       1009.44   2.526    279
        993.84   2.487    185
        524.17   1.312   1000
        513.70   1.286     22
        513.27   1.285     22
    

in DMSO-d6



KBr disc



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