Cerate(4-), tetrakis[sulfato(2-)-κO,κO']-, ammonium (1:4) CAS 178178-73-9

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Cerate(4-), tetrakis[sulfato(2-)-κO,κO']-, ammonium (1:4).

Cerate(4-), tetrakis[sulfato(2-)-κO,κO']-, ammonium (1:4) (CAS 178178-73-9), molecular formula CeO16S4H4N and molecular weight 542.38 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a sulfone group, Cerate(4-), tetrakis[sulfato(2-)-κO,κO']-, ammonium (1:4) is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 542.38 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

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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