Ammonium magnesium phosphate hexahydrate CAS 13478-16-5
| CAS No. | 13478-16-5 |
| Molecular Formula | O4P |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Ammonium magnesium phosphate hexahydrate (CAS 13478-16-5), molecular formula O4PMgH4NH2O and molecular weight 155.33 g/mol, is a CATO reference standard with documented purity and traceability.
Ammonium magnesium phosphate hexahydrate (O4PMgH4NH2O) contains a phosphate ester group. It is notably hygroscopic; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 Formula | O4P Mg H4N 6*H2O |
| Molecular Weight | 155.33 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 1 |
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- Semaglutide impurity 60 (CAS CATO-C4X-222660)
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