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4-Bromotoluene

Product Name 4-Bromotoluene

CAS106-38-7

MFC7H7Br

MW171.03

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  • Mass

    MS-NW-8353          
    p-bromotoluene
    C7H7Br              (Mass of molecular ion:    170)
    

       Source Temperature: 250 °C
       Sample Temperature: 140 °C
       Reservoir, 75 eV
    

          27.0       1.0
          37.0       1.1
          38.0       2.3
          39.0       8.6
          41.0       1.4
          43.0       1.2
          44.0       1.3
          45.0       2.7
          50.0       4.8
          51.0       3.9
          61.0       1.6
          62.0       3.8
          63.0       9.4
          64.0       2.4
          65.0      17.7
          66.0       1.0
          74.0       1.4
          75.0       1.3
          85.0       1.2
          86.0       1.5
          89.0       9.1
          90.0       7.2
          91.0     100.0
          92.0       7.8
         169.0       4.4
         170.0      39.2
         171.0       7.2
         172.0      38.1
         173.0       2.9
    

parameter in CDCl3


  • 1H NMR 300 MHz
    C7 H7 Br 5.0 mol% in CCl4
    p-bromotoluene
    ChemicalStructure
        Parameter     ppm  Hz
    D(A) 6.957 D(B) 7.288 J(A,A') 2.26 J(A,B) 8.12 J(A,B') 0.37 J(A',B) 0.37 J(A',B') 8.12 J(B,B') 2.24 D(C) 2.28 YAMAMOTO,O. ET AL. ANAL.CHEM. 44, 1794 (1972) SMALL LONG RANGE COUPLINGS EXIST BETWEEN CH3(E) AND AROMATIC PROTONS

         Hz     ppm     Int.
    

       2193.29   7.311     24
       2190.76   7.303    198
       2188.84   7.296     70
       2184.36   7.281     77
       2182.39   7.275    236
       2179.91   7.266     30
       2093.66   6.979     30
       2091.13   6.970    237
       2089.21   6.964     77
       2084.68   6.949     71
       2082.76   6.943    197
       2080.24   6.934     24
        684.01   2.280   1000
    

in CDCl3



CCl4 solution



KBr disc



liquid film