| CAS No. | 27818-78-6 |
| Molecular Formula | [128Xe] |
| Molecular Weight | 127.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 氙-<SUP>128</SUP>Xe.
氙-<SUP>128</SUP>Xe (CAS 27818-78-6), molecular formula [128Xe] and molecular weight 127.90 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an inorganic composition, 氙-<SUP>128</SUP>Xe is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 127.90 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | [128Xe] |
| Molecular Weight | 127.90 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Freely soluble in water |
| Stability | Stable under recommended storage conditions |
| CAS Registry Year (est.) | 1964 |