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T0440 Sigma

3,3′,5,5′-Tetramethylbenzidine (TMB) Liquid Substrate System for ELISA

peroxidase substrate

Synonym: TMB

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Description

Frequently Asked Questions

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Application

TMB is a substrate for horseradish peroxidase. Develops a soluble blue reaction product that may be read at 370 or 655 nm. For endpoint assays the reaction may be stopped with acid, forming a yellow reaction product that may be read at 450 nm. Recommended for ELISA (microwell) procedures, not recommended for membrane applications.

Caution

Stable at least one year at 2-8 °C.

Physical form

Ready-to-use.

Price and Availability


Everything You Need for Cell Culture

Safety & Documentation

Safety Information

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Protocols & Articles

Articles

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