CAS Registry Number

CAS 102062-36-2 — N-(3-Sulfopropyl)-3,3',5,5'-tetramethylbenzidine sodium salt (TMB-PS)

N-(3-Sulfopropyl)-3,3',5,5'-tetramethylbenzidine sodium salt (TMB-PS) is a water-soluble chromogenic substrate widely used in ELISA (enzyme-linked immunosorbent assay) and other immunoassay applications for detecting horseradish peroxidase (HRP) activity. It produces a blue color upon oxidation, which intensifies to a yellow solution for easy spectrophotometric measurement. This chemical has a CAS number of 102062-36-2, a molecular formula of C19H26N2O3S, and a molecular weight of 362.4863. It is non-hazardous (no signal word) and can be stored at ambient conditions. Molekula supplies N-(3-Sulfopropyl)-3,3',5,5'-tetramethylbenzidine sodium salt from research to bulk quantities with full documentation and ISO 9001:2015 traceability.