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丁炔二酸二乙酯

产品名称 丁炔二酸二乙酯

CAS号762-21-0

分子式C8H10O4

分子量170.16

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  • Mass

    MS-NW-1162          
    diethyl acetylenedicarboxylate
    C8H10O4             (Mass of molecular ion:    170)
    

       Source Temperature: 240 °C
       Sample Temperature: 170 °C
       Reservoir, 75 eV
    

          15.0       5.3
          18.0       2.3
          25.0       1.2
          26.0       4.7
          27.0      28.5
          28.0       6.9
          29.0      55.5
          30.0       2.0
          31.0       3.2
          39.0       1.9
          41.0       1.2
          42.0       2.5
          43.0      10.7
          44.0       1.4
          45.0      19.7
          51.0       1.1
          52.0      11.8
          53.0      93.3
          54.0       5.3
          55.0       2.1
          66.0       1.4
          67.0       1.3
          68.0       3.4
          69.0       6.8
          70.0       4.1
          79.0       1.4
          80.0      18.8
          81.0       5.5
          82.0       4.6
          84.0       1.0
          96.0       2.2
          97.0      11.6
          98.0      47.2
          99.0       3.9
         112.0       1.3
         113.0       5.6
         115.0       4.6
         119.0       1.4
         124.0      15.5
         125.0     100.0
         126.0      15.2
         127.0       1.9
         143.0       2.9
    

90 MHz in CDCl3


  • 1H NMR 89.56 MHz
    C8 H10 O4 0.04 ml : 0.5 ml CDCl3
    diethyl acetylenedicarboxylate
    ChemicalStructure
        Assign.     Shift(ppm)
    A 4.300 B 1.337

         Hz     ppm     Int.
    

        396.13   4.424    120
        388.94   4.343    425
        381.75   4.263    447
        374.69   4.184    139
        126.69   1.415    461
        123.88   1.384     28
        119.63   1.336   1000
        117.19   1.309     30
        116.63   1.303     34
        112.38   1.255    407
    

in CDCl3



CCl4 solution



liquid film



4880 A,200 M,liquid