CAS Registry Number

CAS 2538-85-4 — Calcon (c.i. 15705) Pa

Calcon (C.I. 15705 PA) is a fluorescent dye used primarily for detecting calcium ions in analytical chemistry, biological assays, and environmental testing. It binds selectively to calcium, producing a bright red fluorescence under UV light, making it ideal for quantitative analysis and imaging applications. This product has a CAS number of 2538-85-4, with the molecular formula C20H13N2NaO5S and a molecular weight of 416.38. It is stored at ambient conditions and carries a signal word of "Warning" for safety. Molekula supplies Calcon from research to bulk quantities with full documentation and ISO 9001:2015 traceability.