Stop Solution for TMB (3,3',5,5'-Tetramethylbenzidine) ELISA substrate. Specifically developed for use with EC-Blue Enhanced Substrate. 50 mL. Medicago AB. For research use. Available worldwide.

Acidic stop solution that terminates the TMB peroxidase chromogenic reaction in ELISA assays. Upon addition, TMB converts from blue (oxidized dicromate form) to stable yellow (protonated form), which is read at 450 nm. Formulated specifically for compatibility with Medicago's EC-Blue Enhanced Substrate to ensure complete and consistent reaction termination without further color development.

• Terminates TMB reaction: blue → yellow, read at 450 nm
• Optimized for EC-Blue Enhanced Substrate compatibility
• 50 mL — approximately 500 microplate wells