4-Fluoro-3-phenoxybenzoic Acid CAS 77279-89-1
| CAS No. | 77279-89-1 |
| Molecular Formula | C13H21FO3 |
| Molecular Weight | 244.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-Fluoro-3-phenoxybenzoic Acid (CAS 77279-89-1) is a high-purity analytical reference standard with the molecular formula C13H21FO3 and a molecular weight of 244.30 g/mol.
Structurally, 4-Fluoro-3-phenoxybenzoic Acid (C13H21FO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 244.30 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).
As a certified reference material (CRM), 4-Fluoro-3-phenoxybenzoic Acid 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 | C13H21FO3 |
| Molecular Weight | 244.30 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | F-containing |
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Recommended Standards
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- Pentanehydrazide (CAS 38291-82-6)
- 1-(Tetrahydrofuran-2-yl)-1H-benzo[d]imidazole (CAS 205122-95-8)
- 2-Ethoxydihydro-2H-pyran-3(4H)-one (CAS 50544-98-4)
- Ethyl 2-((5-iodo-2,6-dimethylpyrimidin-4-yl)oxy)acetate (CAS 677749-39-2)
- 5-Phenyl-1,2,4-oxadiazole-3-carbaldehyde (CAS 73217-79-5)
- 1-(7-Chloro-1-methyl-1H-benzo[d]imidazol-2-yl)ethan-1-ol (CAS 1340508-47-5)
- Peptide Impurity 27 (CAS 1350456-68-6)
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