4-(2-Fluorophenoxy)butanoic acid CAS 2252-61-1
| CAS No. | 2252-61-1 |
| Molecular Formula | C10H11FO3 |
| Molecular Weight | 198.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 198.19 g/mol gives 4-(2-Fluorophenoxy)butanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-(2-Fluorophenoxy)butanoic acid (CAS 2252-61-1), molecular formula C10H11FO3 and molecular weight 198.19 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-(2-Fluorophenoxy)butanoic acid (C10H11FO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 198.19 g/mol, it falls into the medium-molecular-weight range. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C10H11FO3 |
| Molecular Weight | 198.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Related Fluorophenoxy Standards
- (R)-3-(4-Fluorophenoxy)butanoic acid (CAS 1134785-15-1)
- Methyl 2-(3-fluorophenoxy)propanoate (CAS 1247636-15-2)
- (S)-3-(2-fluorophenoxy)butanoic acid (CAS 1416444-71-7)
- (S)-3-(4-fluorophenoxy)butanoic acid (CAS 1416444-85-3)
- (R)-3-(3-fluorophenoxy)butanoic acid (CAS 1416444-86-4)
- (S)-3-(3-fluorophenoxy)butanoic acid (CAS 1416445-07-2)
- (R)-3-(2-fluorophenoxy)butanoic acid (CAS 1416445-12-9)
- Methyl 2-(4-fluorophenoxy)propanoate (CAS 143094-69-3)
Recommended Standards
- 3-Fluoro-4-propoxybenzoic acid (CAS 203115-97-3)
- 4-(3-Fluoro-4-hydroxyphenyl)butanoic acid (CAS 588-25-0)
- 3-Fluoro-4-isopropoxybenzoic Acid (CAS 258273-30-2)
- 4-(3-Fluorophenoxy)butanoic acid (CAS 87411-27-6)
- 3-Chloro-2-formylphenylboronic Acid (CAS 928048-11-7)
- Methyl 1-(4-nitrophenyl)cyclopentane-1-carboxylate (CAS 135569-19-6)
- 4-Phenylstyrene (CAS 2350-89-2)
- 3-Chloro-5-methyl-4-nitropyridine 1-oxide (CAS 97944-37-1)
- (S)-tert-Butyl 3-(2-amino-4-fluorophenoxy)pyrrolidine-1-carboxylate (CAS 1233860-21-3)
- 2,4-Dibromothiazole-5-methanol (CAS 170232-68-5)
- 1-(2-((2-Hydroxyethyl)amino)-1H-benzo[d]imidazol-1-yl)-3,3-dimethylbutan-2-one (CAS 292613-29-7)
- Chlorphenamine Impurity 68 (CAS CATO-C4X-118868)
- (S)-6,7-dimethylchroman-4-amine (CAS 1391592-45-2)
- Galanin-Like Peptide (porcine) trifluoroacetate salt (CAS 245114-96-9)
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