Variamine Blue B Sulfate (=4-Amino-4'-methoxydiphenylamine Sulfate)[for Iron-Titration] CAS 3169-21-9

Description

Compared with other compounds in its class, the molecular weight of 312.34 g/mol gives Variamine Blue B Sulfate (=4-Amino-4'-methoxydiphenylamine Sulfate)[for Iron-Titration] distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Variamine Blue B Sulfate (=4-Amino-4'-methoxydiphenylamine Sulfate)[for Iron-Titration] (CAS 3169-21-9), a certified reference material (molecular formula C13H14N2OH2O4S, MW 312.34 g/mol) for analytical method development and quality control.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Variamine Blue B Sulfate (=4-Amino-4'-methoxydiphenylamine Sulfate)[for Iron-Titration] is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 312.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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