4-Chloro-2-fluoro-6-iodopyridine CAS 1807243-83-9
| CAS No. | 1807243-83-9 |
| Molecular Formula | C5H2ClFIN |
| Molecular Weight | 257.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-Chloro-2-fluoro-6-iodopyridine (C5H2ClFIN) contains a nitrile group, fluorine/chlorine/iodine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 257.43 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 4-Chloro-2-fluoro-6-iodopyridine (CAS 1807243-83-9), a certified reference material (molecular formula C5H2ClFIN, MW 257.43 g/mol) for analytical method development and quality control.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C5H2ClFIN |
| Molecular Weight | 257.43 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.) | 1995 |
| Halogen Content | F/Cl/I-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 4-Chloro-2-fluoro-5-iodopyridine (CAS 1184914-20-2)
- 6-chloro-2-fluoro-3-iodo-pyridine (CAS 1187732-65-5)
- 4-Chloro-5-fluoro-2-iodopyridine (CAS 1211529-70-2)
- 4-Chloro-3-fluoro-5-iodopyridine (CAS 1211581-02-0)
- 6-Chloro-3-fluoro-2-iodopyridine (CAS 1211590-36-1)
- 4-Chloro-2-fluoro-3-iodopyridine (CAS 1211590-40-7)
- 4-Chloro-3-fluoro-2-iodopyridine (CAS 1211590-51-0)
- 3-Chloro-2-fluoro-5-iodopyridine (CAS 1214323-01-9)
Recommended Standards
- 5-Chloro-4-fluoro-2-iodopyridine (CAS 1807115-79-2)
- 2-Chloro-5-fluoro-4-iodopyridine (CAS 884494-49-9)
- 3-Chloro-2-fluoro-6-iodopyridine (CAS 1805653-95-5)
- 3-Chloro-2-fluoro-4-iodopyridine (CAS 796851-05-3)
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- 5,7-dichloro-2-(trifluoromethyl)-3H-imidazo[4,5-b]pyridine (CAS 2089311-29-3)
- Glucagon (1-29) (CAS 16941-32-5)
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