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网站主页CAS数据库列表 21956-56-9更多图谱3,5-二甲氧基二苯乙烯(21956-56-9)质谱(MS)

3,5-二甲氧基二苯乙烯

产品名称 3,5-二甲氧基二苯乙烯

CAS号21956-56-9

分子式C16H16O2

分子量240.3


  • Mass

    MS-KW-0570          
    trans-3,5-dimethoxystilbene
    C16H16O2            (Mass of molecular ion:    240)
    

       Source Temperature: 170 °C
       Sample Temperature: 120 °C
       Direct, 75 eV
    

          18.0       1.1
          28.0       1.1
          39.0       1.3
          51.0       2.4
          63.0       2.5
          64.0       1.8
          69.0       1.6
          69.5       1.4
          75.0       1.1
          76.0       4.8
          77.0       2.9
          81.5       1.0
          82.0       3.2
          82.5       3.8
          83.0       1.8
          89.0       2.8
          91.0       3.1
         102.0       1.4
         103.0       1.8
         105.0       1.7
         112.5       5.1
         113.0       1.2
         115.0       3.3
         119.0       1.1
         120.0       7.5
         127.0       1.8
         128.0       2.4
         129.0       1.0
         139.0       2.2
         141.0       2.6
         151.0       1.8
         152.0       7.4
         153.0       7.3
         154.0       3.5
         155.0       1.1
         163.0       1.3
         164.0       2.6
         165.0      20.4
         166.0       6.3
         167.0       3.2
         176.0       1.2
         177.0       4.7
         178.0       5.9
         179.0       5.4
         180.0       1.6
         181.0       4.5
         182.0       3.2
         192.0       2.1
         193.0       3.3
         194.0       9.3
         195.0       3.2
         196.0       1.5
         197.0       3.6
         207.0       1.3
         208.0       9.4
         209.0      15.5
         210.0       4.3
         211.0       1.8
         224.0       7.7
         225.0       8.1
         226.0       1.3
         239.0      30.2
         240.0     100.0
         241.0      17.1
         242.0       1.8
    

400 MHz in CDCl3


  • 1H NMR 399.65 MHz
    C16H16O2 0.040 g : 0.5 ml CDCl3
    trans-3,5-dimethoxylstilbene
    ChemicalStructure
        Assign.     Shift(ppm)
    A 7.490 B 7.339 C 7.248 D *1 7.065 E *1 7.029 F 6.666 G 6.392 J 3.805

         Hz     ppm     Int.
    

       2999.39   7.503     63
       2997.93   7.499     84
       2990.73   7.481     96
       2990.00   7.480     90
       2941.53   7.358     60
       2939.82   7.354     23
       2934.21   7.340    115
       2932.99   7.337     56
       2927.98   7.324     31
       2926.40   7.320     65
       2913.70   7.289      3
       2904.55   7.266     26
       2903.20   7.262     46
       2901.98   7.259     27
       2897.83   7.249     21
       2895.88   7.244     57
       2893.93   7.239     16
       2889.78   7.229     13
       2888.55   7.226     22
       2887.33   7.223     12
       2837.53   7.098     26
       2821.17   7.057    120
       2812.87   7.036    133
       2796.64   6.996     28
       2665.78   6.669    193
       2663.46   6.663    195
       2557.26   6.397     63
       2554.94   6.391    111
       2552.74   6.386     57
       1592.05   3.983      7
       1521.12   3.805   1000
       1503.91   3.762      3
       1448.25   3.623      7
    

in CDCl3



KBr disk



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