(S)-2-((5-Bromo-2,3-difluorophenoxy)methyl)oxirane CAS 1690144-43-4
| CAS No. | 1690144-43-4 |
| Molecular Formula | C9H7BrF2O2 |
| Molecular Weight | 265.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 265.05 g/mol gives (S)-2-((5-Bromo-2,3-difluorophenoxy)methyl)oxirane distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(S)-2-((5-Bromo-2,3-difluorophenoxy)methyl)oxirane (CAS 1690144-43-4) is a high-purity analytical reference standard with the molecular formula C9H7BrF2O2 and a molecular weight of 265.05 g/mol.
Based on its molecular formula C9H7BrF2O2, (S)-2-((5-Bromo-2,3-difluorophenoxy)methyl)oxirane contains a carboxylic acid group, 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 265.05 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (S)-2-((5-Bromo-2,3-difluorophenoxy)methyl)oxirane 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 | C9H7BrF2O2 |
| Molecular Weight | 265.05 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; 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.) | 1994 |
| Halogen Content | F/Br-containing |
Related S Standards
- 2-Bromo-1-(3,5-difluoro-4-methoxyphenyl)ethan-1-one (CAS 1098617-30-1)
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- Ethyl 5-bromo-2,3-difluorobenzoate (CAS 1187386-10-2)
- 1-[5-bromo-2-(difluoromethoxy)phenyl]ethan-1-one (CAS 1215994-75-4)
- Ethyl 5-bromo-2,4-difluorobenzoate (CAS 1260677-99-3)
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- Ethyl 3-bromo-2,6-difluorobenzoate (CAS 1309933-04-7)
- 3-Bromo-4-(2,2-difluoroethoxy)benzaldehyde (CAS 1340329-94-3)
Recommended Standards
- Methyl 5-bromo-2-(difluoromethyl)benzoate (CAS 1630983-08-2)
- (3-Fluoro-4-(4-oxopiperidine-1-carbonyl)phenyl)boronic acid (CAS 1704069-68-0)
- 6-(Ethylamino)-5-iodopyrimidin-4(3H)-one (CAS 1597391-41-7)
- (4-Fluoro-3-(4-oxopiperidine-1-carbonyl)phenyl)boronic acid (CAS 1704082-33-6)
- Methyl 2-hydroxy-2,3-dihydro-1H-pyrrolizine-6-carboxylate (CAS 2388474-74-4)
- Famphur Oxon (CAS 960-25-8)
- 2-(4-Acetamidophenyl)-N-(6-amino-3-(2-fluorobenzyl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)acetamide (CAS 637335-11-6)
- Bis((2-bromopyridin-4-yl)methyl)amine (CAS 1688656-70-3)
- 3-Methyl-4-(tetrahydro-2-furanylmethoxy)aniline (CAS 946663-46-3)
- 2-(2-Ethoxyphenyl)piperidine, hydrochloride (CAS 1177349-47-1)
- Indobufen Impurity 31 (CAS CATO-C4X-179231)
- (4'-Methyl-[1,1'-biphenyl]-4-yl)methyl acetate (CAS 133151-37-8)
- 4-(4-Chlorophenyl)butan-2-amine (CAS 74697-68-0)
- Insulin Degludec Impurity 28 (CAS CATO-C4X-215728)
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