3-Fluoro-4-methylbenzonitrile CAS 170572-49-3
| CAS No. | 170572-49-3 |
| Molecular Formula | C8H12FN |
| Molecular Weight | 141.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Fluoro-4-methylbenzonitrile is closely related to a nitrile group, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-Fluoro-4-methylbenzonitrile (CAS 170572-49-3), molecular formula C8H12FN and molecular weight 141.19 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, fluorine substitution, 3-Fluoro-4-methylbenzonitrile is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 141.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 | C8H12FN |
| Molecular Weight | 141.19 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2005 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Fluoro Standards
- 3-Fluoro-6-hydrazinyl-2-methylpyridine (CAS 1208250-43-4)
- 3-Fluoro-2-hydrazineyl-4-methylpyridine (CAS 1314932-46-1)
- (E)-5-Fluoro-2-hydrazono-3-methyl-1,2-dihydropyridine (CAS 1314960-42-3)
- 5-Fluoro-2-hydrazinyl-4-methylpyridine (CAS 1388070-75-4)
- 3-Fluoro-4-(hydrazinylmethyl)pyridine (CAS 1446357-93-2)
- 5-Fluoro-2,6-dimethylpyrimidin-4-amine (CAS 1472019-35-4)
- 2-Fluoro-5,6-dimethylpyrimidin-4-amine (CAS 18260-67-8)
- 6-Fluoro-2,5-dimethylpyrimidin-4-amine (CAS 18260-68-9)
Recommended Standards
- 6-Amino-2-methylpyridazine-3(2H)-thione (CAS 170149-21-0)
- 3-Amino-6-methylpyridazine-4-thiol (CAS 18591-81-6)
- Benzenesulfinamide (CAS 16066-31-2)
- 2-(4-Methylthiazol-5-yl)acetaldehyde (CAS 18764-34-6)
- 1-Pentyl-1H-pyrrole-2,5-dione (CAS 19775-00-9)
- 3-chloro-5-methanesulfinylpyridin-2-amine (CAS 1820673-78-6)
- 1-(3-(4-Chlorophenyl)-1,2,4-oxadiazol-5-yl)ethanamine (CAS 915921-14-1)
- 1-(1-Ethoxy-4-ethylcyclohexyl)-N-methylmethanamine (CAS 1249024-58-5)
- 7-Chloro-4-hydroxy-3-(3-phenoxyphenyl)quinolin-2(1H)-one (CAS 142326-59-8)
- 2-Hydroxy-4-methoxy-N,N-dimethylbenzamide (CAS 1019388-59-0)
- EAI045 (CAS 1942114-09-1)
- 1-((5-Mercapto-4-(pyridin-2-yl)-4h-1,2,4-triazol-3-yl)methyl)azepan-2-one (CAS 790272-08-1)
- Sodium 4-(octanoyloxy)benzenesulfonate (CAS 89740-12-5)
- Galanin-Like Peptide (human) trifluoroacetate salt (CAS 245114-99-2)
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