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CAS 62625-31-4 — m-Cresol Purple sodium salt

*m-Cresol Purple sodium salt* is a pH-sensitive dye used as an indicator in titrations and biochemical assays, shifting color between purple and yellow across a pH range of 1.2–2.8. It is also employed in molecular biology for detecting nucleic acids in gel electrophoresis. This product is a sodium salt of *m*-cresol purple, a triarylmethane dye, with a molecular weight of 382.42 g/mol. It appears as a purple powder, soluble in water and polar organic solvents. Molekula supplies *m-Cresol Purple sodium salt* from research to bulk quantities with full documentation and ISO 9001:2015 traceability.