CAS Registry Number

CAS 193149-74-5 — 2-(2-Methoxy-4-nitrophenyl)-3-(4-nitrophenyl)-5-(2,4-disulfophenyl)-2H-tetrazolium sodium salt

This compound is a sodium salt of a tetrazolium dye used in biochemical assays, particularly in cell viability and metabolic activity testing. It is a key reagent in the MTT assay alternative, where it acts as a redox indicator. Available with CAS number 193149-74-5, molecular formula C20H13N6NaO11S2, and molecular weight 600.47 g/mol. Stored at -15 to -20 °C. Hazard classification includes Signal Word: Danger. Molekula supplies 2-(2-Methoxy-4-nitrophenyl)-3-(4-nitrophenyl)-5-(2,4-disulfophenyl)-2H-tetrazolium sodium salt from research to bulk quantities with full documentation and ISO 9001:2015 traceability.