Sodium disulfitoaurate(I) - CAS 19153-98-1

Purity 97%+In StockPharmaceutical Standards
CAS No.19153-98-1
Molecular FormulaAu
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Sodium disulfitoaurate(I) - CAS 19153-98-1 chemical structure

Description

Structurally, Sodium disulfitoaurate(I) - (AuO3SNa) contains a sulfone group. The molecule exhibits a degree of unsaturation (DBE) of 0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 300.02 g/mol, it falls into the moderately-high-molecular-weight range.

Sodium disulfitoaurate(I) - (CAS 19153-98-1), molecular formula AuO3SNa and molecular weight 300.02 g/mol, is a CATO reference standard with documented purity and traceability.

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

Molecular FormulaAu 2*O3S 3*Na
Molecular Weight300.02 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Freely soluble in water
StabilityHygroscopic; reseal immediately after opening
CAS Registry Year (est.)1962
Sulfur Atoms1

Recommended Standards

Why CATO?