Ethyl 5-bromo-2-(difluoromethyl)furan-3-carboxylate CAS 1706459-93-9
| CAS No. | 1706459-93-9 |
| Molecular Formula | C8H7BrF2O3 |
| Molecular Weight | 269.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 269.04 g/mol gives Ethyl 5-bromo-2-(difluoromethyl)furan-3-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Ethyl 5-bromo-2-(difluoromethyl)furan-3-carboxylate (CAS 1706459-93-9) is a high-purity analytical reference standard with the molecular formula C8H7BrF2O3 and a molecular weight of 269.04 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system, Ethyl 5-bromo-2-(difluoromethyl)furan-3-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 269.04 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), Ethyl 5-bromo-2-(difluoromethyl)furan-3-carboxylate 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 | C8H7BrF2O3 |
| Molecular Weight | 269.04 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | F/Br-containing |
Related Ethyl Standards
- 2-[4-bromo-3-(difluoromethyl)-5-methyl-1h-pyrazol-1-yl]acetic acid (CAS 1001518-81-5)
- 2-(4-Bromo-3-(difluoromethyl)-1H-pyrazol-1-yl)propanoic acid (CAS 1379811-34-3)
- methyl 4-bromo-1-(2,2-difluoroethyl)-1H-pyrazole-3-carboxylate (CAS 1429419-32-8)
- Ethyl 4-bromo-1-(difluoromethyl)-1H-pyrazole-5-carboxylate (CAS 1578256-70-8)
- Ethyl 3-bromo-1-(difluoromethyl)-1H-pyrazole-4-carboxylate (CAS 1713713-58-6)
- Methyl 4-bromo-1-(2,2-difluoroethyl)-1H-pyrazole-5-carboxylate (CAS 1823843-16-8)
- Ethyl 5-bromo-1-(difluoromethyl)-1H-pyrazole-4-carboxylate (CAS 2739830-45-4)
- Methyl 2-bromo-4-(difluoromethyl)-1-methyl-1H-imidazole-5-carboxylate (CAS 2416993-19-4)
Recommended Standards
- 3-Iodo-1H-indazole-4-carbonitrile (CAS 944898-93-5)
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- 7-Cyano-3-iodo-5-azaindole (CAS 1352395-49-3)
- 4'-Acetyl-2'-methyl-[1,1'-biphenyl]-4-carboxylic acid (CAS 178313-44-5)
- N-(4-Bromo-2-chlorophenyl)-5-(2-chlorophenyl)furan-2-carboxamide (CAS 853333-56-9)
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- 1-Butylcyclohexan-1-ol (CAS 5445-30-7)
- Camphor Impurity 12 (CAS 2094735-34-7)
- 3-(2-Carboxyethyl)-2,5-dimethylbenzo[d]oxazol-3-ium bromide (CAS 32353-63-2)
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