3,3′,5,5′-Tetramethylbenzidine, ≥99%
3,3′,5,5′-Tetramethylbenzidine, ≥98% (TLC)
3,3′,5,5′-Tetramethylbenzidine, ≥98.0% (NT)
3,3′,5,5′-Tetramethylbenzidine, tablet, 1 mg substrate per tablet
3,3′,5,5′-Tetramethylbenzidine, GR for analysis
3,3′,5,5′-Tetramethylbenzidine, standard for GC