5-Iodobenzoxazol-2(3H)-one CAS 14838-22-3
| CAS No. | 14838-22-3 |
| Molecular Formula | C7H4INO2 |
| Molecular Weight | 261.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-Iodobenzoxazol-2(3H)-one.
5-Iodobenzoxazol-2(3H)-one (CAS 14838-22-3) is a high-purity analytical reference standard with the molecular formula C7H4INO2 and a molecular weight of 261.02 g/mol.
Based on its molecular formula C7H4INO2, 5-Iodobenzoxazol-2(3H)-one contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 261.02 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-Iodobenzoxazol-2(3H)-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H4INO2 |
| Molecular Weight | 261.02 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- 5-Iodo-1H-pyrazolo[3,4-b]pyrazin-3-amine (CAS 1392149-77-7)
- 3-Iodo-3H-Pyrazolo[3,4-d]Pyrimidin-4-Amine (CAS 151266-23-8)
- 5-Iodo-1H-pyrazolo[3,4-b]pyridin-3(2H)-one (CAS 1379322-80-1)
- 3-Iodo-1H-pyrazolo[4,3-d]pyrimidin-7-amine (CAS 162791-82-4)
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