CAS Registry Number

CAS 1945-77-3 — Methylthymol Blue sodium salt

Methylthymol Blue sodium salt is a water-soluble dye used as a pH indicator in analytical chemistry and biochemical assays. It exhibits color changes across a pH range, making it useful in titrations and buffer systems. Available in powder form with a molecular weight of 844.74 g/mol, it has the CAS number 1945-77-3 and the molecular formula C37H40N2Na4O13S. Stored at ambient temperatures, it requires no hazard labeling. Molekula supplies Methylthymol Blue sodium salt from research to bulk quantities with full documentation and ISO 9001:2015 traceability.