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CAS 7057-57-0 — Meldola's blue

Meldola’s blue is a synthetic triarylmethane dye used primarily as a biological stain in microscopy and histology, particularly for detecting nucleic acids in cells. It is also employed in analytical chemistry for spectrophotometric assays and as a pH indicator. This chemical has a CAS number of 7057-57-0, with the molecular formula C18H15ClN2O · 0.5Cl2Zn and a molecular weight of 378.93. It is stable at ambient storage conditions and carries no signal word for hazard classification. Molekula supplies Meldola’s blue from research to bulk quantities with full documentation and ISO 9001:2015 traceability.