4-Fluoro-3-iodopyridine CAS 146141-03-9
| CAS No. | 146141-03-9 |
| Molecular Formula | C5H3FIN |
| Molecular Weight | 222.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Fluoro-3-iodopyridine (CAS 146141-03-9) is a high-purity analytical reference standard with the molecular formula C5H3FIN and a molecular weight of 222.99 g/mol.
Based on its molecular formula C5H3FIN, 4-Fluoro-3-iodopyridine contains a nitrile group, fluorine/iodine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 222.99 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C5H3FIN |
| Molecular Weight | 222.99 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | F/I-containing |
| Nitrogen Atoms | 1 |
Related Fluoro Standards
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Recommended Standards
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- 2,6-Dichloro-3-(difluoromethyl)-5-fluoropyridine (CAS 1374659-39-8)
- 893747-85-8 1-[(2-Fluorophenyl)methyl]piperazin-2-one DTXSID70602373 (CAS 893747-85-8)
- 3-(2-(Dimethylamino)ethoxy)propan-1-amine (CAS 65573-13-9)
- 1-Benzyl-4-hydrazinyl-1h-pyrazolo[3,4-d]pyrimidine (CAS 329707-65-5)
- 5-[2-(Trifluoromethoxy)phenyl]-2-furancarboxylic Acid (CAS 424817-26-5)
- (2,4-Dichlorophenyl)(2-(piperidin-1-ylmethyl)phenyl)methanone (CAS 898773-67-6)
- 2-(3-(Mercaptomethyl)phenoxy)propanoic acid (CAS 66477-43-8)
- Fudosteine Impurity 17 HCl (CAS CATO-C4X-144717)
- Peptide 442 (CAS CATO-CPTD788442)
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