图谱信息 供应商 相关产品
网站主页CAS数据库列表 500-38-9更多图谱去甲二氢愈创木酸(500-38-9)核磁图(13CNMR)

去甲二氢愈创木酸

产品名称 去甲二氢愈创木酸

CAS号500-38-9

分子式C18H22O4

分子量302.36

展开


  • Mass

    MS-IW-0725          
    4,4'-(2,3-dimethyltetramethylene)dipyrocatechol
    C18H22O4            (Mass of molecular ion:    302)
    

       Source Temperature: 190 °C
       Sample Temperature: 160 °C
       Direct, 75 eV
    

          18.0       5.0
          41.0       1.3
          51.0       1.2
          69.0       1.9
          77.0       3.9
         105.0       1.7
         106.0       1.1
         110.0       1.0
         123.0     100.0
         124.0      39.4
         125.0       3.3
         137.0       7.5
         138.0       1.3
         151.0       4.2
         163.0       1.2
         178.0       2.6
         179.0       2.1
         302.0      30.2
         303.0       6.1
         316.0       1.3
    

400 MHz in DMSO-d6


  • 1H NMR 399.65 MHz
    C18 H22 O4 0.034 g : 0.5 ml DMSO-d6
    4,4'-(2,3-dimethyltetramethylene)dipyrocatechol
    ChemicalStructure
        Assign.     Shift(ppm)
    A *1 8.65 B *1 8.62 C 6.629 D 6.539 E 6.399 F *2 2.577 G *2 2.105 J 1.61 K 0.753

         Hz     ppm     Int.
    

       3458.25   8.654    134
       3445.74   8.622    132
       2653.81   6.641    623
       2649.38   6.630     47
       2645.87   6.621    756
       2614.59   6.543    588
       2612.61   6.538    620
       2562.26   6.412    334
       2560.27   6.407    316
       2554.17   6.392    286
       2552.19   6.387    275
       1039.43   2.601    135
       1034.70   2.590    142
       1026.15   2.568    160
       1021.42   2.556    157
        852.51   2.134    136
        843.35   2.111    166
        839.23   2.100    143
        830.08   2.078    135
        653.84   1.637     74
        647.43   1.620    121
        644.53   1.613    113
        641.33   1.605    120
        635.07   1.590     72
        304.41   0.762   1000
        297.70   0.745    959
    

in DMSO-d6



KBr disc



nujol mull