2-Fluoro-3-iodopyrazine CAS 206278-26-4
| CAS No. | 206278-26-4 |
| Molecular Formula | C4H2FIN2 |
| Molecular Weight | 223.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Fluoro-3-iodopyrazine (CAS 206278-26-4), molecular formula C4H2FIN2 and molecular weight 223.97 g/mol, is a CATO reference standard with documented purity and traceability.
2-Fluoro-3-iodopyrazine (C4H2FIN2) contains a nitrile group, fluorine/iodine substitution. Halogen substitution raises its density and boiling point; 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.
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.
As a certified reference material (CRM), 2-Fluoro-3-iodopyrazine 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 | C4H2FIN2 |
| Molecular Weight | 223.97 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 DMSO, DMF, methanol |
| 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.) | 2015 |
| Halogen Content | F/I-containing |
| Nitrogen Atoms | 2 |
Related Fluoro Standards
- 2-Fluoro-6-iodopyrazine (CAS 1286744-13-5)
- 5-Fluoro-2-iodopyrimidine (CAS 1443533-34-3)
- 3-Fluoro-6-iodopyridazine (CAS 162438-03-1)
- 4-Fluoro-2-iodopyrimidine (CAS 1803821-34-2)
- 4-Fluoro-6-iodopyrimidine (CAS 1806337-84-7)
- 5-Fluoro-4-iodopyrimidine (CAS 1806346-54-2)
- 2-Fluoro-4-iodopyrimidine (CAS 1806392-49-3)
- 2-Fluoro-6-trifluoromethoxy-phenyl boronic acid (CAS 1261214-72-5)
Recommended Standards
- (1-(3,5-Difluorophenyl)-1H-pyrazol-4-yl)boronic acid (CAS 2225173-89-5)
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- (1-(3,4-Difluorophenyl)-1H-pyrazol-4-yl)boronic acid (CAS 2225178-76-5)
- (3-Acetamido-2-nitrophenyl)boronic acid (CAS 78887-38-4)
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