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Merck
3,3′,5,5′-Tetramethylbenzidine Liquid Substrate, Slow Kinetic Form, for ELISA peroxidase substrate

3,3′,5,5′-Tetramethylbenzidine

3,3′,5,5′-Tetramethylbenzidine Liquid Substrate, Slow Kinetic Form, for ELISA peroxidase substrate