4-fluorofuran-2-carboxylic acid CAS 1211581-60-0
| CAS No. | 1211581-60-0 |
| Molecular Formula | C5H3FO3 |
| Molecular Weight | 130.07 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.
4-fluorofuran-2-carboxylic acid (CAS 1211581-60-0), molecular formula C5H3FO3 and molecular weight 130.07 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 substitution, 4-fluorofuran-2-carboxylic acid is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 130.07 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 | C5H3FO3 |
| Molecular Weight | 130.07 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
Related fluorofuran Standards
- 5-fluorofuran-3-carboxylic acid (CAS 1555994-59-6)
- 2-fluorofuran-3-carboxylic acid (CAS 1557300-81-8)
- 4-fluorofuran-3-carboxylic acid (CAS 1558405-94-9)
- 5-Fluorofuran-2-boronic Acid (CAS 1344061-02-4)
- (1R)-1-(3-fluorofuran-2-yl)ethan-1-amine (CAS 1391362-94-9)
- (1S)-1-(3-fluorofuran-2-yl)ethan-1-amine (CAS 1391425-87-8)
- 1-(3-fluorofuran-2-yl)ethan-1-amine (CAS 1824125-69-0)
- (3-fluorofuran-2-yl)methanethiol (CAS 1822661-22-2)
Recommended Standards
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