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7-Methoxy-4-methylcoumarin

CAS2555-28-4

MFC11H10O3

MW190.2

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  • Mass

    MS-NW-7770          
    7-methoxy-4-methylcoumarin
    C11H10O3            (Mass of molecular ion:    190)
    

       Source Temperature: 160 °C
       Sample Temperature: 120 °C
       Direct, 75 eV
    

          15.0       6.4
          26.0       1.3
          27.0       3.0
          29.0       1.9
          37.0       1.5
          38.0       3.7
          39.0      13.3
          40.0       1.3
          41.0       2.4
          43.0       3.0
          45.5       1.0
          49.0       1.0
          50.0       8.0
          51.0      14.0
          52.0       4.4
          53.0       2.4
          55.0       1.1
          61.0       2.2
          62.0       5.7
          63.0      12.3
          64.0       3.6
          65.0      17.5
          66.0       1.5
          69.0       6.1
          74.0       3.9
          75.0       4.2
          76.0       4.8
          77.0      10.6
          78.0       3.5
          79.0       2.5
          81.0       1.1
          86.0       1.3
          87.0       1.5
          89.0       6.7
          90.0       4.9
          91.0      29.8
          92.0       3.0
          93.0       1.0
         101.0       1.2
         102.0       3.0
         103.0       6.4
         104.0       1.5
         105.0       1.5
         118.0       3.5
         119.0       8.5
         120.0       1.3
         131.0       2.3
         132.0       1.3
         133.0       1.8
         134.0       1.9
         146.0       1.8
         147.0      85.2
         148.0       8.6
         161.0      10.8
         162.0     100.0
         163.0      12.0
         190.0      68.4
         191.0       8.9
         192.0       1.0
    

90 MHz in CDCl3


  • 1H NMR 89.56 MHz
    C11 H10 O3 0.033 g : 0.5 ml CDCl3
    7-methoxy-4-methylcoumarin
    ChemicalStructure
        Assign.     Shift(ppm)
    A 7.485 B 6.902 C 6.801 D 6.123 E 3.871 F 2.393

         Hz     ppm     Int.
    

        675.88   7.547     74
        674.69   7.534     54
        667.81   7.457     77
        666.75   7.445     97
        665.31   7.429     39
        619.63   6.919     83
        617.13   6.891    126
        612.19   6.836     28
        609.19   6.803    312
        607.88   6.788     84
        606.81   6.776     29
        549.06   6.131    130
        547.81   6.117    127
        346.75   3.872   1000
        215.00   2.401    584
        213.81   2.388    560
    

in CDCl3



KBr disc



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