Description
TMB Membrane Substrate is a ready to use solution. It contains 3,3’,5,5’-tetramethylbenzidine in a mildly acidic buffer in a one bottle format. Unreacted substrate should be faint yellow to pink in appearance. TMB Membrane Substrate develops an insoluble, permanent dark blue reaction in the presence of peroxidase. This substrate is not recommended for microwell or immunohistochemical applications. TMB Membrane Substrate is stable for 2 years, from the date manufacture, when stored at 2-25oC. Over time, some flocculent material may appear, however, this does not affect product performance