Product Name3,6-BIS(4-BROMO-2-SULFOPHENYLAZO)-4,5-DIHYDROXY-2,7-NAPHTHALENEDISULFONIC ACID

CAS

Molecular FormulaC22H14Br2N4O14S4

Molecular Weight846.43

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parameter in DMSO-d6

¹H NMR	300 MHz
C₂₂ H₁₂ Br₂ N₄ Na₂ O₁₄ S₄	0.033 g : 0.5 ml DMSO-d₆
bromosulfonazo III

    Parameter     ppm  Hz

      D(A)         8.048
      D(B)         7.937
      D(C)         7.738
       J(A,B)          0.3
       J(A,C)          8.8
       J(B,C)          2.3
     
      D(D)         7.522
     
      D(E)         3.61

     Hz     ppm     Int.

   2419.02   8.063    210
   2410.23   8.034    254
   2382.30   7.941    234
   2379.99   7.933    251
   2326.72   7.756    149
   2324.45   7.748    139
   2317.93   7.726    124
   2315.66   7.719    115
   2256.58   7.522    500
   1082.99   3.610   1000

KBr disc

nujol mull

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