2-Bromo-1-(difluoromethoxy)-3,4-difluorobenzene CAS 1807026-35-2
| CAS No. | 1807026-35-2 |
| Molecular Formula | C7H3BrF4O |
| Molecular Weight | 259.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Bromo-1-(difluoromethoxy)-3,4-difluorobenzene (CAS 1807026-35-2), molecular formula C7H3BrF4O and molecular weight 259.00 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H3BrF4O, 2-Bromo-1-(difluoromethoxy)-3,4-difluorobenzene contains a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 259.00 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), 2-Bromo-1-(difluoromethoxy)-3,4-difluorobenzene 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 | C7H3BrF4O |
| Molecular Weight | 259.00 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F/Br-containing |
Related Bromo Standards
- 1-Bromo-2-fluoro-3-(trifluoromethoxy)benzene (CAS 1033202-63-9)
- 4-Bromo-2-fluoro-1-(trifluoromethoxy)benzene (CAS 105529-58-6)
- 1-Bromo-3-fluoro-5-(trifluoromethoxy)benzene (CAS 1129541-09-8)
- 4-Bromo-2-fluoro-6-(trifluoromethyl)phenol (CAS 1224604-17-4)
- 2-Bromo-1-fluoro-3-(trifluoromethoxy)benzene (CAS 1242249-84-8)
- 1-Bromo-4-fluoro-2-(trifluoromethoxy)benzene (CAS 1242252-07-8)
- 1-Bromo-3-fluoro-2-(trifluoromethoxy)benzene (CAS 1242258-31-6)
- 1-Bromo-2-(difluoromethoxy)-4,5-difluoro-benzene (CAS 1242258-46-3)
Recommended Standards
- 3-Bromo-2-fluoro-5-(trifluoromethyl)phenol (CAS 1807005-89-5)
- 1-Bromo-2,5-difluoro-3-(difluoromethoxy)benzene (CAS 1807026-41-0)
- 4-Bromo-2-fluoro-5-(trifluoromethyl)phenol (CAS 1805552-60-6)
- 2-Bromo-5-fluoro-3-(trifluoromethyl)phenol (CAS 1807145-12-5)
- 2,3,6-Trichloroquinoxaline (CAS 2958-87-4)
- n-(1-(3-Aminopropyl)-3-methyl-1h-pyrazol-5-yl)acetamide (CAS 1181458-77-4)
- Methyl 2-bromo-5-fluoro-4-(trifluoromethyl)benzoate (CAS 2092867-63-3)
- 3-[2-(2-Ethoxyethoxy)ethyl]piperidinehydrochloride (CAS 1220017-47-9)
- 4-(5-Methyl-1,3,4-oxadiazol-2-yl)aniline (CAS 25877-49-0)
- 4,5,6,7-Tetrahydro-1H-pyrazolo[3,4-b]pyridine-3-carboxylic acid hydrochloride (CAS 2137635-09-5)
- Cabozantinib Impurity 11 (CAS 748707-58-6)
- N-Butyl-5-methyl-1,3,4-thiadiazol-2-amine (CAS 62347-87-9)
- 1-(4-Bromophenyl)-1,3,8-triazaspiro[4.5]decan-4-one (CAS 61271-81-6)
- Semaglutide impurity 27 (CAS CATO-C4X-222627)
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