5-Fluoro-3-(2-methoxyphenyl)benzoic acid CAS 1261924-27-9
| CAS No. | 1261924-27-9 |
| Molecular Formula | C14H11FO3 |
| Molecular Weight | 246.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-Fluoro-3-(2-methoxyphenyl)benzoic acid (CAS 1261924-27-9), a certified reference material (molecular formula C14H11FO3, MW 246.23 g/mol) for analytical method development and quality control.
Structurally, 5-Fluoro-3-(2-methoxyphenyl)benzoic acid (C14H11FO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 246.23 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C14H11FO3 |
| Molecular Weight | 246.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
Related Fluoro Standards
- 3'-Fluoro-4'-methoxy-[1,1'-biphenyl]-4-carboxylic acid (CAS 106291-25-2)
- 2'-Fluoro-4'-methoxy-[1,1'-biphenyl]-4-carboxylic acid (CAS 1178021-58-3)
- 2-Fluoro-5-(2-methoxyphenyl)benzoic acid (CAS 1178303-59-7)
- 2-Fluoro-4-(3-methoxyphenyl)benzoic acid (CAS 1178418-69-3)
- 4-Fluoro-3-(3-methoxyphenyl)benzoic acid (CAS 1181452-19-6)
- 4-Fluoro-3-(2-methoxyphenyl)benzoic acid (CAS 1181639-56-4)
- 2'-Fluoro-4'-methoxy-[1,1'-biphenyl]-3-carboxylic acid (CAS 1182754-74-0)
- 2-Fluoro-4-(4-methoxyphenyl)benzoic acid (CAS 1183759-96-7)
Recommended Standards
- Methyl 5-fluoro-4'-hydroxy-[1,1'-biphenyl]-3-carboxylate (CAS 1261921-87-2)
- 3-Fluoro-4-(3-methoxyphenyl)benzoic acid (CAS 1261924-36-0)
- 4'-Fluoro-3'-methoxy-[1,1'-biphenyl]-2-carboxylic acid (CAS 1261915-12-1)
- 2'-Fluoro-3'-methoxy-[1,1'-biphenyl]-2-carboxylic acid (CAS 1261932-56-2)
- Ethyl 2-(5-(difluoromethyl)-3-methyl-1H-pyrazol-1-yl)acetate (CAS 1006682-80-9)
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