(5R)-5-[(1R)-2-bromo-1-hydroxyethyl]-3,4-dihydroxy-2,5-dihydrofuran-2-one CAS 62983-44-2
| CAS No. | 62983-44-2 |
| Molecular Formula | C6H7BrO5 |
| Molecular Weight | 239.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(5R)-5-[(1R)-2-bromo-1-hydroxyethyl]-3,4-dihydroxy-2,5-dihydrofuran-2-one (CAS 62983-44-2), molecular formula C6H7BrO5 and molecular weight 239.02 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (5R)-5-[(1R)-2-bromo-1-hydroxyethyl]-3,4-dihydroxy-2,5-dihydrofuran-2-one (C6H7BrO5) contains a carbohydrate-derived structure, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 239.02 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C6H7BrO5 |
| Molecular Weight | 239.02 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, water |
| 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.) | 1974 |
| Halogen Content | Br-containing |
Recommended Standards
- 3-Bromo-1-(2,2-difluoroethyl)-1H-pyrazole-4-carbaldehyde (CAS 1946812-97-0)
- 2-(2-Methyl-4,5-dihydro-1H-imidazol-1-yl)ethan-1-ol (CAS 695-94-3)
- 5-Bromo-6-(1,1-difluoroethyl)pyrimidin-4(3H)-one (CAS 1816998-61-4)
- 2-Amino-5-bromo-3-(difluoromethoxy)pyridine (CAS 947249-13-0)
- N-Benzyloxycarbonyl-L-lysyl]-L-proline Methyl Ester Trifluoroacetic acid salt (CAS 108456-08-2)
- 2-(3-(Trifluoromethyl)phenyl)isoindolin-1-one (CAS 1374223-02-5)
- 6-Methyl-5-((4-methylpiperidin-1-yl)methyl)-2-(methylthio)pyrimidin-4(3H)-one (CAS 1263213-71-3)
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- 2-(2-Ethoxy-5-nitrophenyl)acetic acid (CAS 383135-76-0)
- Insulin Detemir (CAS 169148-63-4)
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