CAS Registry Number

CAS 3051-09-0 — Murexide (C.I. 56085)

Murexide (C.I. 56085) is an ammonium salt of purpuric acid, widely used as a chemical indicator in complexometric titrations, particularly for calcium and magnesium analysis, as well as in analytical chemistry for pH-sensitive colorimetric applications. It appears as a dark red to violet powder, soluble in water and alcohol. This product has a CAS number of 3051-09-0, with a molecular formula of C8H8N6O6 and a molecular weight of 284.19 g/mol. It is stable at ambient storage conditions and carries no signal word for hazard classification. Molekula supplies Murexide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.