4-(3-Bromophenoxy)benzoic acid CAS 347173-46-0
| CAS No. | 347173-46-0 |
| Molecular Formula | C13H9BrO3 |
| Molecular Weight | 293.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 293.11 g/mol gives 4-(3-Bromophenoxy)benzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-(3-Bromophenoxy)benzoic acid (CAS 347173-46-0) is a high-purity analytical reference standard with the molecular formula C13H9BrO3 and a molecular weight of 293.11 g/mol.
The molecular framework of 4-(3-Bromophenoxy)benzoic acid (C13H9BrO3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C13H9BrO3 |
| Molecular Weight | 293.11 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.) | 2025 |
| Halogen Content | Br-containing |
Related Bromophenoxy Standards
- 2-(3-Bromophenoxy)benzoic acid (CAS 1021245-85-1)
- 2-(2-Bromophenoxy)benzoic acid (CAS 917477-33-9)
- 2-(4-Bromophenoxy)benzoic acid (CAS 74744-77-7)
- 3-(4-Bromophenoxy)benzoic acid (CAS 77317-51-2)
- 4-(2-Bromophenoxy)benzoic acid (CAS 86607-80-9)
- 4-(4-Bromophenoxy)benzoic acid (CAS 21120-68-3)
- 6-(4-Bromophenoxy)nicotinamide (CAS 1016671-78-5)
- 2-(4-Bromophenoxy)nicotinamide (CAS 1017096-28-4)
Recommended Standards
- 4-Chloro-N-(4-chloropyrimidin-5-yl)-3-cyanobenzamide (CAS 918880-63-4)
- 2,4-dichloro-8-(trifluoromethoxy)quinazoline (CAS 959237-48-0)
- 5-azido-3-iodo-1H-indazole (CAS 876365-97-8)
- 5-bromo-3-phenyl Salicylic Acid (CAS 99514-99-5)
- (4-Nitrophenyl)methylphosphonic acid (CAS 1205-62-5)
- (2S,3S)-3-Boc-amino-1,2-epoxy-4-phenyl-d (CAS 856765-76-9)
- N-(2-Isopropyl-6-methylphenyl)thiourea (CAS 1208886-86-5)
- 5-(Bromomethyl)-1H-indazol-3-amine (CAS 891864-98-5)
- methyl 4,4-difluorobutanoate (CAS 1866071-82-0)
- Benzyl 4,4,4-trifluoro-3-oxobutanoate (CAS 83097-87-4)
- 2-Benzyl-2-azaspiro[4.4]Nonane-6-carbonitrile (CAS 1357353-06-0)
- 2-Bromo-3,5-dichloro-4-hydroxypyridine (CAS 1970-38-3)
- 3-Phenyl-2-thioxo-6-(trifluoromethyl)-2,3-dihydropyrimidin-4(1H)-one (CAS 269736-23-4)
- Semaglutide Impurity 149 (CAS CATO-C4X-2226149)
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