| CAS No. | 67321-81-7 |
| Molecular Formula | [17O]2 |
| Molecular Weight | 34.00 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 67321-81-7 541C150APR Oxygen O-17 UNII-541C150APR Oxygen, mol. (17O2).
CATO supplies 67321-81-7 541C150APR Oxygen O-17 UNII-541C150APR Oxygen, mol. (17O2) (CAS 67321-81-7), a certified reference material (molecular formula [17O]2, MW 34.00 g/mol) for analytical method development and quality control.
The molecular framework of 67321-81-7 541C150APR Oxygen O-17 UNII-541C150APR Oxygen, mol. (17O2) ([17O]2) is characterized by an inorganic composition. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.
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 | [17O]2 |
| Molecular Weight | 34.00 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.) | 1976 |