2-Fluoro-2-methoxyacetic acid, potassium salt CAS 1803593-09-0
| CAS No. | 1803593-09-0 |
| Molecular Formula | C3H5FO3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Fluoro-2-methoxyacetic acid, potassium salt (CAS 1803593-09-0), molecular formula C3H5FO3K and molecular weight 147.17 g/mol, is a CATO reference standard with documented purity and traceability.
2-Fluoro-2-methoxyacetic acid, potassium salt (C3H5FO3K) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C3H5FO3 K |
| Molecular Weight | 147.17 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 | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F-containing |
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Recommended Standards
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- 3-(2-((Difluoromethyl)thio)-4,6-dimethylpyrimidin-5-yl)propanoic acid (CAS 863668-50-2)
- 2-(Methylsulfanyl)pyridine-3-carbonitrile (CAS 219766-02-6)
- Ethyl 1-(2-fluoroethyl)-1H-pyrazole-5-carboxylate (CAS 1198437-41-0)
- 2-Chloro-N-(3,5-dichlorophenyl)-4-nitrobenzamide (CAS 328258-86-2)
- Semaglutide (CAS CATO-C4X-2226105)
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