3-Ethyl-5-fluoropyridine CAS 2089319-08-2
| CAS No. | 2089319-08-2 |
| Molecular Formula | C7H8FN |
| Molecular Weight | 125.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-Ethyl-5-fluoropyridine (CAS 2089319-08-2) is a high-purity analytical reference standard with the molecular formula C7H8FN and a molecular weight of 125.14 g/mol.
The molecular framework of 3-Ethyl-5-fluoropyridine (C7H8FN) is characterized by a nitrile group, fluorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C7H8FN |
| Molecular Weight | 125.14 g/mol |
| 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- 3-Ethyl-2-fluoropyridine (CAS 1020718-14-2)
- 4-Ethyl-2-fluoropyridine (CAS 111887-68-4)
- 2-Ethyl-6-fluoropyridine (CAS 1309113-04-9)
- 4-Ethyl-3-fluoropyridine (CAS 137234-73-2)
- 2-Ethyl-5-fluoropyridine (CAS 1934667-67-0)
- 4-Fluoropyridine-2-carboxaldehyde (CAS 1060809-18-8)
- 4-Fluoropyridine-3-carbaldehyde (CAS 884495-32-3)
- 5-Fluoropyridine-2-carboxaldehyde (CAS 31181-88-1)
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