4-fluorofuran-3-carboxylic acid CAS 1558405-94-9
| CAS No. | 1558405-94-9 |
| Molecular Formula | C5H3FO3 |
| Molecular Weight | 130.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-fluorofuran-3-carboxylic acid (CAS 1558405-94-9) is a high-purity analytical reference standard with the molecular formula C5H3FO3 and a molecular weight of 130.07 g/mol.
Based on its molecular formula C5H3FO3, 4-fluorofuran-3-carboxylic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 130.07 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.
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.
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 | 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.) | 1992 |
| Halogen Content | F-containing |
Related fluorofuran Standards
- 4-fluorofuran-2-carboxylic acid (CAS 1211581-60-0)
- 5-fluorofuran-3-carboxylic acid (CAS 1555994-59-6)
- 2-fluorofuran-3-carboxylic acid (CAS 1557300-81-8)
- 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
- 2-(Trifluoromethoxy)ethan-1-ol (CAS 362631-84-3)
- 3,3,3-Trifluoropropane-1,2-diol (CAS 431-39-0)
- (S)-3,3,3-trifluoropropane-1,2-diol (CAS 148683-14-1)
- Trifluoroacetaldehyde methyl hemiacetal (tech.) (CAS 431-46-9)
- 6-Chloro-1H-pyrazolo[3,4-b]pyridine (CAS 63725-51-9)
- 67746-96-7 7964AE C12H18ClNO N-[2-(4-Chlorophenoxy)ethyl]-1-butanamine (CAS 67746-96-7)
- 2-((4-Fluorophenyl)thio)-N-(6-methyl-4,5,6,7-tetrahydrobenzo[d]thiazol-2-yl)acetamide (CAS 895490-08-1)
- 5-(Tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethoxy)pyridin-2-amine (CAS 1620575-08-7)
- 2-(3-Fluoro-4-(trifluoromethoxy)phenyl)pyridine (CAS 1443347-50-9)
- Intermediate material 100171 (CAS CATO-CIM-100171)
- (2S,4S)-4-(4-bromo-2-chlorophenoxy)-1-(tert-butoxycarbonyl)pyrrolidine-2-carboxylic acid (CAS 1354485-75-8)
- Phenyl 1,4-diazepane-1-carboxylate hydrochloride (CAS 1240526-24-2)
- (3-Fluoro-5-(1H-pyrrol-1-yl)phenyl)boronic acid (CAS 2225169-48-0)
- D-Asp15-Tirzepatide (CAS CATO-CPTD788919)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com