3-Ethyl-4-fluorobenzonitrile CAS 869299-63-8
| CAS No. | 869299-63-8 |
| Molecular Formula | C9H8FN |
| Molecular Weight | 149.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution, 3-Ethyl-4-fluorobenzonitrile is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 149.16 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
3-Ethyl-4-fluorobenzonitrile (CAS 869299-63-8) is a high-purity analytical reference standard with the molecular formula C9H8FN and a molecular weight of 149.16 g/mol.
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 | C9H8FN |
| Molecular Weight | 149.16 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- 2-Ethyl-4-fluorobenzonitrile (CAS 934012-95-0)
- 3-Acetyl-5-fluorobenzonitrile (CAS 105515-21-7)
- 3-Acetyl-2-fluorobenzonitrile (CAS 112279-89-7)
- 4-Acetyl-3-fluorobenzonitrile (CAS 1352144-78-5)
- 2-Acetyl-5-fluorobenzonitrile (CAS 1363508-10-4)
- 3-Acetyl-4-fluorobenzonitrile (CAS 267875-54-7)
- 4-Acetyl-2-fluorobenzonitrile (CAS 214760-18-6)
- 5-Acetyl-2-fluorobenzonitrile (CAS 288309-07-9)
Recommended Standards
- 3-(4-Fluorophenyl)propanenitrile (CAS 25468-86-4)
- 3-Fluoro-5-(hydroxymethyl)piperidin-4-ol (CAS 682331-19-7)
- 3-(3-Fluorophenyl)propanenitrile (CAS 25468-87-5)
- 3-Fluoro-5-methylphenylacetonitrile (CAS 518070-21-8)
- 4-Amino-5-methyl-1-(methyl-d3)-2-phenyl-1,2-dihydro-3H-pyrazol-3-one (CAS 1329792-51-9)
- 2-Methoxy-3,4-dihydro-2H-pyrrole (CAS 470477-87-3)
- 2-(((4-Fluorophenyl)thio)methyl)pyrimidin-4-amine (CAS 1466786-32-2)
- 7-(Difluoromethoxy)-1,2,3,4-tetrahydroisoquinoline (CAS 1209300-05-9)
- Pomalidomide Impurity 1 (CAS 1001852-14-7)
- 1-(4-Chlorobenzyl)pyrrolidin-3-ol (CAS 415946-61-1)
- Atrasentan Impurity 20 (CAS 1058350-30-3)
- methyl 2-cyclohexyl-2-methoxyacetate (CAS 104036-61-5)
- Letrozole Impurity 26 (CAS 870766-45-3)
- Tirzepatide Impurity 24 X TFA Salt (CAS CATO-C4X-324024)
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