| CAS No. | 12159-07-8 |
| Molecular Formula | Cu5Si |
| Molecular Weight | 345.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
Copper silicide (CAS 12159-07-8), molecular formula Cu5Si and molecular weight 345.82 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula Cu5Si, Copper silicide contains an inorganic composition; these features give the compound characteristic molecular-ion distribution patterns in mass spectrometry. The molecular weight of 345.82 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.
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 | Cu5Si |
| Molecular Weight | 345.82 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Freely soluble in water |
| Stability | Stable under recommended storage conditions |
| CAS Registry Year (est.) | 1960 |