KPL TrueBlue™ peroxidase substrate is a highly sensitive chromagenic substrate for visualisation of horseradish peroxidase-labeled reporter reagents.

• Provides a brilliant blue specific stain which provides excellent contrast with red counterstains
• Free of known carcinogens
• Single component, ready to use, liquid substrate
• No mixing is required

KPL TrueBlue™ peroxidase substrate is a buffered solution containing 3,3',5,5'-tetramethylbenzidine (TMB) and H₂O₂. It is optimised for use with cellular preparations and can be used for immunoblotting procedures, but not for microwell ELISA or other applications requiring a soluble reaction product.