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4-Bromo-1,2-(methylenedioxy)benzene

Product Name 4-Bromo-1,2-(methylenedioxy)benzene

CAS2635-13-4

MFC7H5BrO2

MW201.02

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  • Mass 

    MS-NW-8541          
4-bromo-1,2-methylenedioxybenzene
C7H5BrO2            (Mass of molecular ion:    200)


       Source Temperature: 260 °C
   Sample Temperature: 140 °C
   Reservoir, 75 eV


          26.0       1.2
      28.0       1.9
      29.0       4.6
      32.0       1.1
      37.0       7.4
      38.0       6.0
      39.0       7.5
      42.0       1.0
      46.0       1.0
      49.0       3.5
      50.0       8.8
      51.0       8.6
      53.0       8.0
      60.0       1.7
      61.0      11.9
      62.0      26.9
      63.0      83.4
      64.0       7.0
      65.0      25.5
      66.0       2.2
      72.0       1.3
      73.0       1.0
      74.0       1.2
      79.0      10.2
      80.0       1.0
      90.0       1.3
      91.0       4.0
      92.0       2.2
      93.0       1.8
      99.5       2.2
     100.0       4.7
     100.5       2.5
     101.0       4.7
     117.0       1.4
     119.0       1.3
     120.0       1.3
     121.0       4.3
     141.0       1.1
     142.0       4.8
     143.0       4.6
     144.0       5.5
     145.0       3.6
     146.0       1.0
     170.0       1.1
     172.0       1.2
     199.0      70.2
     200.0     100.0
     201.0      76.1
     202.0      97.1
     203.0       7.6

parameter in CDCl3


  • 1H NMR 300 MHz
    C7 H5 Br O2 0.05 ml : 0.5 ml CDCl3
    4-bromo-1,2-methylenedioxybenzene
    ChemicalStructure 
        Parameter     ppm  Hz
    
      D(A)         6.917
      D(B)         6.905
      D(C)         6.643
       J(A,B)          1.94
       J(A,C)          0.40
       J(B,C)          8.23
     
      D(D)         5.920
  

         Hz     ppm     Int.


       2075.59   6.919    512
   2074.08   6.914    194
   2068.44   6.895    178
   2066.52   6.888    111
   1997.05   6.657    173
   1995.49   6.652     77
   1989.89   6.633     67
   1988.32   6.628    139
   1776.00   5.920   1000

in CDCl3



liquid film



4880 A,200 M,liquid



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