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?3,3',5,5'-Tetramethylbenzidine , its cas register number is 54827-17-7. It also can be called Tetramethylbenzidine ; 3,3',5,5'-Tetramethyl-(1,1'-biphenyl)-4,4'-diamine ; TMB Quick ; and (1,1'-Biphenyl)-4,4'-diamine, 3,3',5,5'-tetramethyl- .
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