| CAS No. | 13462-91-4 |
| Molecular Formula | H3AsO4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Aluminum arsenate (CAS 13462-91-4) is a high-purity analytical reference standard with the molecular formula H3AsO4Al and a molecular weight of 168.92 g/mol.
Owing to an inorganic composition, Aluminum arsenate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 168.92 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
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.
| Molecular Formula | H3AsO4 Al |
| Molecular Weight | 168.92 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 1960 |