| CAS No. | 28080-54-8 |
| Molecular Formula | C5H9IN2O2 |
| Molecular Weight | 256.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-iodanyl-5-nitro-pyridine 2-iodo-5-nitropyridine 28080-54-8 A819320 (CAS 28080-54-8) is a high-purity analytical reference standard with the molecular formula C5H9IN2O2 and a molecular weight of 256.04 g/mol.
2-iodanyl-5-nitro-pyridine 2-iodo-5-nitropyridine 28080-54-8 A819320 (C5H9IN2O2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C5H9IN2O2 |
| Molecular Weight | 256.04 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |