Methyl 2-Fluoro-2-methylpropionate CAS 338-76-1
| CAS No. | 338-76-1 |
| Molecular Formula | C5H9FO2 |
| Molecular Weight | 120.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Methyl 2-Fluoro-2-methylpropionate (C5H9FO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 120.12 g/mol, it falls into the low-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Methyl 2-Fluoro-2-methylpropionate (CAS 338-76-1), molecular formula C5H9FO2 and molecular weight 120.12 g/mol, is a CATO reference standard with documented purity and traceability.
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), Methyl 2-Fluoro-2-methylpropionate 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 | C5H9FO2 |
| Molecular Weight | 120.12 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 | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Related Methyl Standards
- 3-Fluoro-3-methylbutanoic acid (CAS 1314982-17-6)
- trans-3-fluoro-4-hydroxy-tetrahydropyran (CAS 1443112-12-6)
- 2-Fluoro-3-methylbutyric Acid (CAS 1578-62-7)
- 3-fluoro-2,2-dimethylpropanoic acid (CAS 64241-77-6)
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Recommended Standards
- Ethyl 2-Fluoropropionate (CAS 349-43-9)
- Ethyl (R)-2-fluoropropanoate (CAS 72959-94-5)
- 4-Fluorophenylacetylene (CAS 766-98-3)
- 5-Fluoropentanoic acid (CAS 407-75-0)
- Ethyl 5-(2,2-dimethylpropyl)-1,2,4-oxadiazole-3-carboxylate (CAS 1343835-50-6)
- 1-[2-(Dimethylamino)ethyl]-1H-pyrazole-4-carboxylic acid (CAS 874196-92-6)
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