4-fluoro-5-methylfuran-2-carboxylic acid CAS 1545471-68-8
| CAS No. | 1545471-68-8 |
| Molecular Formula | C6H5FO3 |
| Molecular Weight | 144.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-fluoro-5-methylfuran-2-carboxylic acid (CAS 1545471-68-8), molecular formula C6H5FO3 and molecular weight 144.10 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H5FO3, 4-fluoro-5-methylfuran-2-carboxylic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 144.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), 4-fluoro-5-methylfuran-2-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6H5FO3 |
| Molecular Weight | 144.10 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | F-containing |
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- Methyl 2-Amino-[1,2,4]triazolo[1,5-a]pyridine-6-carboxylate (CAS 1094107-41-1)
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- n-Cyclopropyl-4-(4-fluorophenyl)-5-methylthiazol-2-amine (CAS 940782-10-5)
- Tau Peptide (268-282) trifluoroacetate salt (CAS 330456-37-6)
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