((2R,3R,4S)-3-acetoxy-5-bromo-4-fluorotetrahydrofuran-2-yl)methyl acetate CAS 444586-87-2
| CAS No. | 444586-87-2 |
| Molecular Formula | C9H12BrFO5 |
| Molecular Weight | 299.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of ((2R,3R,4S)-3-acetoxy-5-bromo-4-fluorotetrahydrofuran-2-yl)methyl acetate is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
((2R,3R,4S)-3-acetoxy-5-bromo-4-fluorotetrahydrofuran-2-yl)methyl acetate (CAS 444586-87-2), molecular formula C9H12BrFO5 and molecular weight 299.09 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, ((2R,3R,4S)-3-acetoxy-5-bromo-4-fluorotetrahydrofuran-2-yl)methyl acetate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 299.09 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H12BrFO5 |
| Molecular Weight | 299.09 g/mol |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Br-containing |
Recommended Standards
- 5-Bromo-1-(tetrahydro-2H-pyran-2-yl)-3-(trifluoromethyl)-1H-pyrazole (CAS 1818227-69-8)
- (3-((4-(Methoxycarbonyl)phenyl)carbamoyl)phenyl)boronic acid (CAS 874460-00-1)
- 4-(Difluoromethyl)-2-fluoro-6-(trifluoromethoxy)-3-(trifluoromethyl)pyridine (CAS 1804476-24-1)
- (Phenyliodonio)sulfamate (PISA) (CAS 2135323-39-4)
- 4-(4-Bromophenyl)isoxazol-5-amine (CAS 925007-32-5)
- 2-(3-Bromo-4-methylphenyl)-1,3-thiazole (CAS 903522-18-9)
- (E)-3-((4-(4-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)phenyl)amino)-1-(4-fluorophenyl)prop-2-en-1-one (CAS 478262-27-0)
- 1-Bromo-4-(3,3,3-trifluoroprop-1-en-2-yl)benzene (CAS 136476-20-5)
- 5-Hydroxy Duloxetine (CAS 741693-77-6)
- 2-Chloro-N-(pyridin-2-ylmethyl)nicotinamide (CAS 550314-43-7)
- (1R,2R)-2-Phenylcyclopropanamine hydrochloride (CAS 1228117-50-7)
- 1-(4-Chlorobenzyl)-1,3,4,5-tetrahydro-2H-benzo[b]azepin-2-one (CAS 303988-04-7)
- 511-81-9 Machaeric acid (CAS 511-81-9)
- Semaglutide impurity 86 (CAS CATO-C4X-152686)
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