3-Bromofuran-2(5H)-one CAS 76311-89-2
| CAS No. | 76311-89-2 |
| Molecular Formula | C4H3BrO2 |
| Molecular Weight | 162.97 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.
3-Bromofuran-2(5H)-one (CAS 76311-89-2), molecular formula C4H3BrO2 and molecular weight 162.97 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, 3-Bromofuran-2(5H)-one is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 162.97 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.
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.
Physical & Chemical Properties
| Molecular Formula | C4H3BrO2 |
| Molecular Weight | 162.97 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Br-containing |
Related Bromofuran Standards
- 4-Bromofuran-3-ol (CAS 1414637-85-6)
- 2-Bromofuran-3-ol (CAS 859999-09-0)
- 2-Bromofuran-3-amine (CAS 1227959-22-9)
- 5-Bromofuran-3-carbonitrile (CAS 197846-10-9)
- 2-Bromofuran-3-carbonitrile (CAS 921939-06-2)
- 3-Bromofuran-2-carbonitrile (CAS 32460-11-0)
- 5-Bromofuran-2-carbonitrile (CAS 4915-06-4)
- 4-Bromofuran-3-carbaldehyde (CAS 164513-46-6)
Recommended Standards
- 3-Bromo-2H-furan-5-one (CAS 56634-50-5)
- 4-Bromo-1H-pyrazol-1-ol (CAS 87844-44-8)
- 3-Bromo-1H-pyrazol-1-ol (CAS 384339-47-3)
- 5-Bromo-2,5-dihydrofuran-2-one (CAS 40125-53-9)
- (3-Chloro-5-(piperidin-3-yl)phenyl)boronic acid (CAS 2225152-81-6)
- 1-(3,4-Dimethylphenyl)pyrimidine-2,4,6(1H,3H,5H)-trione (CAS 340225-63-0)
- N-Cyclohexyl-4-methyl-3-nitrobenzenesulfonamide (CAS 134187-80-7)
- 5-Bromoquinazoline (CAS 958452-00-1)
- (6-(Cyclobutylamino)pyridin-2-yl)boronic acid (CAS 1309981-35-8)
- Tert-butyl (1-(5-iodopyridin-2-yl)piperidin-4-yl)carbamate (CAS 1242240-91-0)
- 4-Chloro-2-phenylpyrimidin-5-amine (CAS 13317-70-9)
- 1,3,3-Trimethylbicyclo[2.2.1]Heptan-2-amine (CAS 21252-46-0)
- 8-Bromo-7-hydroxyquinoline (CAS 90224-71-8)
- [Tyr0] Fibrinopeptide A, human (CAS 103226-11-5)
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