Methyl 2-bromo-5-(difluoromethoxy)benzoate CAS 705279-03-4
| CAS No. | 705279-03-4 |
| Molecular Formula | C9H7BrF2O3 |
| Molecular Weight | 281.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Methyl 2-bromo-5-(difluoromethoxy)benzoate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Methyl 2-bromo-5-(difluoromethoxy)benzoate (CAS 705279-03-4), molecular formula C9H7BrF2O3 and molecular weight 281.05 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system, Methyl 2-bromo-5-(difluoromethoxy)benzoate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 281.05 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.) | 1985 |
| Halogen Content | F/Br-containing |
Related Methyl Standards
- Methyl 5-bromo-2-(difluoromethoxy)benzoate (CAS 1131587-78-4)
- 4-Bromo-3-(2,2-difluoroethoxy)benzoic acid (CAS 1255707-61-9)
- Methyl 4-bromo-3-(difluoromethoxy)benzoate (CAS 1331943-86-2)
- 3-Bromo-4-(2,2-difluoroethoxy)benzoic acid (CAS 1339780-72-1)
- 5-Bromo-2-(difluoromethoxy)benzohydrazide (CAS 1403565-82-1)
- 2-(3-Bromo-5,6-difluoro-2-methoxyphenyl)acetic acid (CAS 1889215-54-6)
- 2-(4-Bromo-2-(difluoromethoxy)phenyl)acetic acid (CAS 2251715-10-1)
- 2-(4-Bromo-3-methoxyphenyl)-2,2-difluoroacetic acid (CAS 2228694-85-5)
Recommended Standards
- Ethyl 2-iodo-4-methyloxazole-5-carboxylate (CAS 78451-12-4)
- Methyl 3-bromo-4-(difluoromethoxy)benzoate (CAS 200956-56-5)
- 6-Amino-5-iodo-1,3-dimethylpyrimidine-2,4(1H,3H)-dione (CAS 200190-41-6)
- Methyl 3-bromo-5-(difluoromethyl)-2-hydroxybenzoate (CAS 2091144-56-6)
- (R)-Methyl 2-(((benzyloxy)carbonyl)amino)-2-phenylacetate (CAS 147780-60-7)
- 5-Methyl-1-((tetrahydro-2H-pyran-4-yl)methyl)-1H-pyrazol-3-amine (CAS 1697173-52-6)
- 3-(2-Methyl-4-oxo-1,4-dihydropyrimido[1,2-b]indazol-3-yl)propanoic acid (CAS 1573547-48-4)
- Ethyl 4-(2-carbamoylphenoxy)piperidine-1-carboxylate (CAS 1956310-90-9)
- 3-Phenyl-5-(trifluoromethyl)picolinonitrile (CAS 1214335-58-6)
- 3-Amino-N-(3-chloro-4-methylphenyl)-6-ethyl-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide (CAS 625370-14-1)
- Benzyl 5-bromopyridin-3-ylcarbamate (CAS 762298-10-2)
- Aztreonam Impurity 58 (CAS CATO-C4X-152258)
- ACrylate-peg5-t-butyl ester (CAS 1435943-66-0)
- D-Phe6-Tirzepatide (CAS CATO-CPTD788925)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com