3-Bromo-4-(2,2-difluoroethoxy)benzoic acid CAS 1339780-72-1
| CAS No. | 1339780-72-1 |
| Molecular Formula | C9H7BrF2O3 |
| Molecular Weight | 281.05 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.
CATO supplies 3-Bromo-4-(2,2-difluoroethoxy)benzoic acid (CAS 1339780-72-1), a certified reference material (molecular formula C9H7BrF2O3, MW 281.05 g/mol) for analytical method development and quality control.
The molecular framework of 3-Bromo-4-(2,2-difluoroethoxy)benzoic acid (C9H7BrF2O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, 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.
As a certified reference material (CRM), 3-Bromo-4-(2,2-difluoroethoxy)benzoic 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 | C9H7BrF2O3 |
| Molecular Weight | 281.05 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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.) | 1991 |
| Halogen Content | F/Br-containing |
Related Bromo Standards
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- Methyl 4-bromo-3-(difluoromethoxy)benzoate (CAS 1331943-86-2)
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- 2-(3-Bromo-5,6-difluoro-2-methoxyphenyl)acetic acid (CAS 1889215-54-6)
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